{"id":16399,"date":"2026-04-24T10:33:44","date_gmt":"2026-04-24T10:33:44","guid":{"rendered":"https:\/\/classltd.com\/?page_id=16399"},"modified":"2026-04-29T15:23:53","modified_gmt":"2026-04-29T15:23:53","slug":"cargo-safe-plus-ultrasonic-hatch-cover-tester","status":"publish","type":"page","link":"https:\/\/classltd.com\/de\/cargo-safe-plus-ultrasonic-hatch-cover-tester\/","title":{"rendered":"CARGO-SAFE PLUS\u2122 Ultrasonic Hatch Cover Tester"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:40px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one main-title\" style=\"--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">CARGO-SAFE PLUS\u2122 Ultrasonic Hatch Cover and Door Tester<\/h1><\/div><div class=\"fusion-separator custome-sep\" style=\"align-self: flex-start;margin-right:auto;margin-top:0px;margin-bottom:30px;width:100%;max-width:120px;\"><div class=\"fusion-separator-border sep-single sep-solid\" style=\"--awb-height:20px;--awb-amount:20px;--awb-sep-color:#fc6a20;border-color:#fc6a20;border-top-width:4px;\"><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-border-color:#e4e4e4;--awb-border-style:solid;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-four main-title\" style=\"--awb-text-color:#000000;--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">What is CARGO-SAFE PLUS\u2122?<\/h4><\/div><div class=\"fusion-text fusion-text-1\"><p><em>CARGO-SAFE PLUS\u2122 \u2014 the dual-purpose ultrasonic tester trusted by marine surveyors worldwide.<\/em><\/p>\n<\/div><div class=\"fusion-text fusion-text-2\"><p>Water ingress through defective hatch covers and poorly sealing doors is one of the most common causes of cargo damage at sea. Ship owners, managers and their insurers all have a vested interest in proving that holds stay dry and that accommodation and access doors remain weather-tight \u2014 because a single leaking seal can trigger a substantial P&amp;I claim. Regular tightness testing is therefore a cornerstone of responsible vessel maintenance.<\/p>\n<p>The CARGO-SAFE PLUS\u2122 is our ABS Type Approved ultrasonic tightness tester, engineered for surveyors who need to cover more than hatch covers alone. It delivers the same fast, reliable results as the standard CARGO-SAFE\u2122 on bow, stern and side hatch covers, and extends that capability to watertight and weather-tight doors. Unlike hose testing, ultrasonic testing is a single-operator job, leaves no water on deck, no runoff into the dock, and works reliably in sub-zero conditions.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element \" style=\"text-align:right;--awb-margin-bottom:20px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"133\" height=\"75\" alt=\"ABS Approved Product\" title=\"ABS Approved Product\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27133%27%20height%3D%2775%27%20viewBox%3D%270%200%20133%2075%27%3E%3Crect%20width%3D%27133%27%20height%3D%2775%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/09\/small-abs2.png\" class=\"lazyload img-responsive wp-image-3529\"\/><\/span><\/div><div class=\"fusion-text fusion-text-3 plus-callout\"><p><strong>Two instruments in one kit.<\/strong><\/p>\n<p>Hatch covers, watertight doors and weathertight doors \u2014 tested with a single ABS Type Approved system.<\/p>\n<\/div><div class=\"fusion-image-element \" style=\"text-align:right;--awb-margin-bottom:20px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"1276\" height=\"1276\" alt=\"CARGO-SAFE PLUS ultrasonic hatch cover and door tester kit, full contents laid out including tripod, adapter plate, magnetic transmitter, receiver and door-testing microphone lead\" title=\"CargoSafeKit\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit.jpg\" data-orig-src=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit.jpg\" class=\"lazyload img-responsive wp-image-3990\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271276%27%20height%3D%271276%27%20viewBox%3D%270%200%201276%201276%27%3E%3Crect%20width%3D%271276%27%20height%3D%271276%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-200x200.jpg 200w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-400x400.jpg 400w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-600x600.jpg 600w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-800x800.jpg 800w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-1200x1200.jpg 1200w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit.jpg 1276w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 600px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:40px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three main-title\" style=\"--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">What you get with CARGO-SAFE PLUS\u2122<\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p>Everything included in the standard CARGO-SAFE\u2122, plus the additional door-testing kit:<\/p>\n<ul>\n<li><strong>Tripod<\/strong> \u2014 stably positions the transmitter at the correct height for door seal testing.<\/li>\n<li><strong>Adapter plate<\/strong> \u2014 gives the transmitter a flat, magnet-compatible surface on the tripod head.<\/li>\n<li><strong>Magnetic transmitter<\/strong> \u2014 built-in magnets let the transmitter attach directly to the adapter plate, or to a nearby steel bulkhead, hands-free. The transmitter is never mounted on the frame of the door under test \u2014 it is positioned on the tripod or on an adjacent bulkhead, so the ultrasound travels through the door seal, not along the frame.<\/li>\n<li><strong>Door-testing microphone lead<\/strong> \u2014 a dedicated lead that connects to the receiver for the tighter acoustic environments found around doors, giving more controlled, precise readings in smaller spaces.<\/li>\n<li><strong>All standard CARGO-SAFE\u2122 components<\/strong> \u2014 receiver, 157 dB transmitter, headphones, carry case, full accessory set.<\/li>\n<\/ul>\n<blockquote>\n<p>In short: the PLUS turns a CARGO-SAFE\u2122 into a CARGO-SAFE\u2122 <em>and<\/em> a DOOR-SAFE\u2122 in a single carry case \u2014 the preferred choice for surveyors who inspect both hatch covers and doors on the same attendance.<\/p>\n<\/blockquote>\n<\/div><div class=\"fusion-image-carousel fusion-image-carousel-fixed fusion-image-carousel-1 lightbox-enabled fusion-carousel-border\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel awb-carousel--carousel awb-swiper-dots-position-bottom\" data-layout=\"carousel\" data-autoplay=\"yes\" data-autoplayspeed=\"2500\" data-autoplaypause=\"no\" data-loop=\"yes\" data-columns=\"6\" data-columnsmedium=\"1\" data-columnssmall=\"1\" data-itemmargin=\"20\" data-itemwidth=\"180\" data-touchscroll=\"no\" data-freemode=\"no\" data-imagesize=\"fixed\" data-scrollitems=\"0\" data-centeredslides=\"no\" data-rotationangle=\"50\" data-depth=\"100\" data-speed=\"500\" data-shadow=\"no\" data-pagination=\"bullets\" style=\"--awb-columns:6;--awb-column-spacing:20px;--awb-border-width:1px;--awb-border-color:#e9eaee;\"><div class=\"swiper-wrapper awb-image-carousel-wrapper fusion-flex-align-items-center\"><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"Receiver_a_1\" aria-label=\"Receiver_a_1\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/Receiver_a_1.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272538%27%20height%3D%272184%27%20viewBox%3D%270%200%202538%202184%27%3E%3Crect%20width%3D%272538%27%20height%3D%272184%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS ultrasonic receiver\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Receiver_a_1-320x202.jpg\" \/><\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"Trans_a\" aria-label=\"Trans_a\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/Trans_a.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271695%27%20height%3D%272289%27%20viewBox%3D%270%200%201695%202289%27%3E%3Crect%20width%3D%271695%27%20height%3D%272289%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS magnetic ultrasonic transmitter\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Trans_a-320x202.jpg\" \/><\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"ExtensionArm_1\" aria-label=\"ExtensionArm_1\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/ExtensionArm_1.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272536%27%20height%3D%271760%27%20viewBox%3D%270%200%202536%201760%27%3E%3Crect%20width%3D%272536%27%20height%3D%271760%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS magnetic transmitter mounted on the adapter plate fitted to the supplied tripod\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/ExtensionArm_1-320x202.jpg\" \/><\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"SpareMicro_EmergencyLead_1\" aria-label=\"SpareMicro_EmergencyLead_1\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/SpareMicro_EmergencyLead_1-scaled.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272560%27%20height%3D%271586%27%20viewBox%3D%270%200%202560%201586%27%3E%3Crect%20width%3D%272560%27%20height%3D%271586%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS door-testing microphone lead for use in confined compartments\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/SpareMicro_EmergencyLead_1-320x202.jpg\" \/><\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"Headphones_1\" aria-label=\"Headphones_1\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/Headphones_1.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271900%27%20height%3D%271944%27%20viewBox%3D%270%200%201900%201944%27%3E%3Crect%20width%3D%271900%27%20height%3D%271944%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS hard-hat compatible headphones\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Headphones_1-320x202.jpg\" \/><\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-zoomin\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"CargoSafeKit\" aria-label=\"CargoSafeKit\" href=\"https:\/\/www.classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit.jpg\" target=\"_self\"><img decoding=\"async\" width=\"320\" height=\"202\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271276%27%20height%3D%271276%27%20viewBox%3D%270%200%201276%201276%27%3E%3Crect%20width%3D%271276%27%20height%3D%271276%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" class=\"attachment-blog-medium size-blog-medium lazyload\" alt=\"CARGO-SAFE PLUS carry case open with contents visible\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/CargoSafeKit-320x202.jpg\" \/><\/a><\/div><\/div><\/div><\/div><div class=\"awb-swiper-button awb-swiper-button-prev\"><i class=\"awb-icon-angle-left\" aria-hidden=\"true\"><\/i><\/div><div class=\"awb-swiper-button awb-swiper-button-next\"><i class=\"awb-icon-angle-right\" aria-hidden=\"true\"><\/i><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:50px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-three main-title\" style=\"--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">One kit. Three inspections.<\/h3><\/div><div class=\"fusion-text fusion-text-5\"><p>The standard CARGO-SAFE\u2122 transmitter is deliberately powerful \u2014 its 157 dB output is sized for the large volumes inside cargo holds. Doors and compartments are smaller, and that extra power can overwhelm a confined space. The PLUS solves this with its dedicated door-testing microphone lead, which gives the receiver a more controlled reading in tighter acoustic environments. You get the full power when you need it for holds, and a measured, precise response when you switch to doors \u2014 without swapping instruments.<\/p>\n<p>The PLUS is designed for the surveyor whose day involves:<\/p>\n<ul>\n<li>Hatch cover weathertightness tests<\/li>\n<li>Watertight door inspections: engine room, bulkhead and compartment doors<\/li>\n<li>Weathertight door inspections: accommodation, wheelhouse and external access doors<\/li>\n<\/ul>\n<p>One carry case covers all three, reducing kit, training and calibration overhead.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:50px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element \" style=\"text-align:center;--awb-margin-bottom:20px;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-3 hover-type-none\"><img decoding=\"async\" width=\"600\" height=\"379\" alt=\"Marine surveyor using the CARGO-SAFE PLUS to test a watertight door on a vessel\" title=\"cargo safe plus testing water-tight door2\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2.png\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-600x379.png\" class=\"lazyload img-responsive wp-image-16429\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271578%27%20height%3D%27997%27%20viewBox%3D%270%200%201578%20997%27%3E%3Crect%20width%3D%271578%27%20height%3D%27997%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-200x126.png 200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-400x253.png 400w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-600x379.png 600w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-800x505.png 800w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2-1200x758.png 1200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/cargo-safe-plus-testing-water-tight-door2.png 1578w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 600px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-margin-bottom:40px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:50px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-three main-title\" style=\"--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">See the PLUS in use<\/h3><\/div><div class=\"fusion-text fusion-text-6\"><p>The PLUS covers both door-testing and hatch-cover testing workflows. Door-testing mode follows the same principle as DOOR-SAFE\u2122, while hatch-cover mode follows the standard CARGO-SAFE\u2122 process shown below.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top:30px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">CARGO-SAFE PLUS\u2122 \u2014 hatch-cover mode<\/h4><\/div><div class=\"fusion-video fusion-vimeo\" style=\"--awb-max-width:1237.11px;--awb-max-height:695.86px;\"><div class=\"video-shortcode\"><div class=\"fluid-width-video-wrapper\" style=\"padding-top:56.25%;\" ><iframe title=\"Vimeo video player 1\" src=\"https:\/\/player.vimeo.com\/video\/787526694?autoplay=0&amp;autopause=0&amp;loop=0?autoplay=0&amp;autopause=0\" width=\"1237.11\" height=\"695.86\" allowfullscreen allow=\"autoplay; fullscreen\"><\/iframe><\/div><\/div><\/div><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-margin-top:30px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h4 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">CARGO-SAFE PLUS\u2122 \u2014 for water-tight, weather-tight doors<\/h4><\/div><div class=\"fusion-text fusion-text-7\"><p>To begin a Cargo-Safe Plus\u2122 survey the transmitter unit is placed behind the door or hatch. In general the receiver unit should be on the side of the door that has better access to the seal to optimise the location of any leaks; therefore the transmitter is placed on the other side to this. The position of the transmitter should be such that the sound generated by the transmitter is spread evenly over the door. The transmitter can be hung using the straps on the leather case or the transmitter can be positioned using the magnets on the back of the unit, either to attach to a wall or steel plate. If there is no suitable place to attach or hang the transmitter, the magnets can be used with the tripod stand provided, see diagram below. When the magnets are used for placing, the transmitter must be removed from the leather case. The transmitter is placed approximately 5 meters ( 15ft ) from the door.<\/p>\n<\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-4 hover-type-none\"><img decoding=\"async\" width=\"1921\" height=\"1078\" title=\"Placing_of_the_Transmitter_Unit4\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4.jpg\" data-orig-src=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4.jpg\" alt class=\"lazyload img-responsive wp-image-16419\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271921%27%20height%3D%271078%27%20viewBox%3D%270%200%201921%201078%27%3E%3Crect%20width%3D%271921%27%20height%3D%271078%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4-200x112.jpg 200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4-400x224.jpg 400w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4-600x337.jpg 600w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4-800x449.jpg 800w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4-1200x673.jpg 1200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/Placing_of_the_Transmitter_Unit4.jpg 1921w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-bottom:40pz;--awb-background-color:var(--awb-color3);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-7 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-three main-title\" style=\"--awb-margin-top:40px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">CARGO-SAFE PLUS\u2122 \u2014 Door-test mode<\/h3><\/div><div class=\"fusion-video fusion-vimeo\" style=\"--awb-max-width:1237.1px;--awb-max-height:695.86px;\"><div class=\"video-shortcode\"><div class=\"fluid-width-video-wrapper\" style=\"padding-top:56.25%;\" ><iframe title=\"Vimeo video player 2\" src=\"https:\/\/player.vimeo.com\/video\/787528921?autoplay=0&amp;autopause=0?amp;loop=0?autoplay=0&amp;autopause=0\" width=\"1237.1\" height=\"695.86\" allowfullscreen allow=\"autoplay; fullscreen\"><\/iframe><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-6 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling hand-icon cargo-safe-plus-page\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:40px;--awb-padding-bottom:40px;--awb-padding-top-medium:75px;--awb-padding-bottom-medium:75px;--awb-padding-top-small:50px;--awb-padding-bottom-small:50px;--awb-margin-bottom:-20px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-8 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:50px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:00px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-9 fusion-sep-none fusion-title-text fusion-title-size-three main-title\" style=\"--awb-margin-top:00px;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left\" style=\"margin:0;\">More capability, better value than two systems<\/h3><\/div><div class=\"fusion-text fusion-text-8\"><p>Because of the additional tripod, adapter plate, magnetic transmitter and door-testing lead, the CARGO-SAFE PLUS\u2122 sits at a slightly higher price point than the standard CARGO-SAFE\u2122. For any surveyor who already needs \u2014 or anticipates needing \u2014 a door-testing capability, it remains significantly more cost-effective than purchasing a CARGO-SAFE\u2122 and a DOOR-SAFE\u2122 separately, and it is lighter to carry on board.<\/p>\n<p>Class Instrumentation Limited backs every CARGO-SAFE PLUS\u2122 with a three-year warranty on the receiver and transmitter units against defects in materials and workmanship, from the date of dispatch. Accessories \u2014 including the tripod, adapter plate, leads and headphones \u2014 carry a six-month warranty. Technical support by phone or email is available free of charge for the working life of the product. The instrument is built to IP66 environmental protection, is stormproof, and is engineered to perform reliably in the harsh conditions typical of ship-deck work.<\/p>\n<p>For the standard hatch-cover-only configuration, see the <a href=\"https:\/\/www.classltd.com\/cargo-safe-ultrasonic-hatch-cover-tester\/\"><strong>CARGO-SAFE\u2122<\/strong><\/a>.<\/p>\n<p>For smaller-scale door-only investigations, see the <a href=\"https:\/\/classltd.com\/door-safe-water-tight-tester\/\"><strong>DOOR-SAFE\u2122<\/strong><\/a>.<\/p>\n<p>For budget-conscious, smaller-scale testing, see the <a href=\"https:\/\/classltd.com\/cabin-safe-ultrasonic-leak-detector\/\"><strong>CABIN-SAFE\u2122<\/strong><\/a> system.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-9 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:auto;--awb-margin-top-large:20px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--awb-width-medium:auto;--awb-spacing-right-medium:2%;--awb-spacing-left-medium:2%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div ><a class=\"fusion-button button-flat fusion-button-default-size button-custom fusion-button-default button-1 fusion-button-default-span fusion-button-default-type call-btn\" style=\"--button_accent_color:#ffffff;--button_accent_hover_color:#ffffff;--button_border_hover_color:#ffffff;--button_gradient_top_color:#00235a;--button_gradient_bottom_color:#00235a;--button_gradient_top_color_hover:#f08421;--button_gradient_bottom_color_hover:#f08421;\" target=\"_self\" href=\"https:\/\/www.classltd.com\/ultrasonic-test-equipment-quote-request\/\"><i class=\"fa-edit fas awb-button__icon awb-button__icon--default button-icon-left\" aria-hidden=\"true\"><\/i><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Get A Quote<\/span><\/a><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-10 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:auto;--awb-margin-top-large:20px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--awb-width-medium:auto;--awb-spacing-right-medium:2%;--awb-spacing-left-medium:2%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div ><a class=\"fusion-button button-flat fusion-button-default-size button-custom fusion-button-default button-2 fusion-button-default-span fusion-button-default-type call-btn\" style=\"--button_accent_color:#ffffff;--button_accent_hover_color:#ffffff;--button_border_hover_color:#ffffff;--button_gradient_top_color:#f08421;--button_gradient_bottom_color:#f08421;--button_gradient_top_color_hover:#f08421;--button_gradient_bottom_color_hover:#f08421;\" target=\"_self\" href=\"#\"><i class=\"fa-arrow-alt-down fas awb-button__icon awb-button__icon--default button-icon-left\" aria-hidden=\"true\"><\/i><span class=\"fusion-button-text awb-button__text awb-button__text--default\">CARGO-SAFE PLUS<\/span><\/a><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-7 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-bottom:100px;--awb-padding-bottom-medium:75px;--awb-padding-bottom-small:50px;--awb-margin-bottom:-20px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-11 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:50px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"awb-gallery-wrapper awb-gallery-wrapper-1 button-span-no\" style=\"--more-btn-alignment:center;\"><div style=\"margin:-12px;--awb-bordersize:0px;\" class=\"fusion-gallery fusion-gallery-container fusion-grid-4 fusion-columns-total-10 fusion-gallery-layout-grid fusion-gallery-1\"><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Hatch-covers.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Hatch-covers-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Hatch-covers\" aria-label=\"Hatch-covers\" class=\"img-responsive wp-image-3974 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Hatch-covers-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Hatch-covers-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-cargo-ship.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-cargo-ship-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Bulk cargo ship\" aria-label=\"Bulk cargo ship\" class=\"img-responsive wp-image-3976 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-cargo-ship-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-cargo-ship-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2022\/02\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202-1.png\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2022\/02\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202-1.png\" width=\"320\" height=\"202\" alt=\"\" title=\"Cargo-Safe-in-use-on-a-bulk-carrier-320&#215;202\" aria-label=\"Cargo-Safe-in-use-on-a-bulk-carrier-320&#215;202\" class=\"img-responsive wp-image-4957 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2022\/02\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202-1-200x126.png 200w, https:\/\/classltd.com\/wp-content\/uploads\/2022\/02\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202-1.png 320w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 291px, (min-width: 784px) 388px, (min-width: 712px) 582px, (min-width: 640px) 712px, \" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-carrier-in-storm-7.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-carrier-in-storm-7-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Bulk carrier in storm 7\" aria-label=\"Bulk carrier in storm 7\" class=\"img-responsive wp-image-3981 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-carrier-in-storm-7-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Bulk-carrier-in-storm-7-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div class=\"clearfix\"><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-ship-panoramic.png\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-ship-panoramic-320x202.png\" width=\"320\" height=\"202\" alt=\"\" title=\"Cargo ship panoramic\" aria-label=\"Cargo ship panoramic\" class=\"img-responsive wp-image-3983 fusion-gallery-image-size-fixed\"  \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-2-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-2-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Cargo-Safe in use on a bulk carrier 2\" aria-label=\"Cargo-Safe in use on a bulk carrier 2\" class=\"img-responsive wp-image-3986 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-2-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-2-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Cargo-Safe in use on a bulk carrier\" aria-label=\"Cargo-Safe in use on a bulk carrier\" class=\"img-responsive wp-image-3987 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-in-use-on-a-bulk-carrier-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-production-line.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-production-line-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"Cargo-Safe production line\" aria-label=\"Cargo-Safe production line\" class=\"img-responsive wp-image-3989 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-production-line-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/Cargo-Safe-production-line-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div class=\"clearfix\"><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/fortius-ship-fleet-2.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/fortius-ship-fleet-2-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"fortius-ship-fleet 2\" aria-label=\"fortius-ship-fleet 2\" class=\"img-responsive wp-image-3993 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/fortius-ship-fleet-2-320x202.jpg 320w, https:\/\/classltd.com\/wp-content\/uploads\/2021\/10\/fortius-ship-fleet-2-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:12.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome.png\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-320x202.png\" width=\"320\" height=\"202\" alt=\"\" title=\"dome\" aria-label=\"dome\" class=\"img-responsive wp-image-16422 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-200x126.png 200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-400x252.png 400w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-600x378.png 600w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-800x505.png 800w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome-1200x757.png 1200w, https:\/\/classltd.com\/wp-content\/uploads\/2026\/04\/dome.png 1579w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 291px, (min-width: 784px) 388px, (min-width: 712px) 582px, (min-width: 640px) 712px, \" \/><\/a><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-12 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"accordian fusion-accordian faq-wrapper product-toggles\" style=\"--awb-border-size:1px;--awb-icon-size:20px;--awb-content-font-size:17px;--awb-icon-alignment:left;--awb-hover-color:#f9f9fb;--awb-border-color:#e2e2e2;--awb-background-color:#ffffff;--awb-divider-color:#e2e2e2;--awb-divider-hover-color:#e2e2e2;--awb-icon-color:#ffffff;--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;--awb-icon-box-color:#150e81;--awb-toggle-hover-accent-color:#f08421;--awb-title-font-family:Arial, Helvetica, sans-serif;--awb-title-font-weight:400;--awb-title-font-style:normal;--awb-title-font-size:20px;--awb-content-font-family:Arial, Helvetica, sans-serif;--awb-content-font-style:normal;--awb-content-font-weight:400;\"><div class=\"panel-group fusion-toggle-icon-boxed\" id=\"accordion-16399-1\"><div class=\"fusion-panel panel-default panel-aed93bb9d3f453842 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_aed93bb9d3f453842\"><a aria-expanded=\"false\" aria-controls=\"aed93bb9d3f453842\" role=\"button\" data-toggle=\"collapse\" data-target=\"#aed93bb9d3f453842\" href=\"#aed93bb9d3f453842\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">HOW DOES THE CARGO-SAFE PLUS\u2122 WORK?<\/span><\/a><\/h4><\/div><div id=\"aed93bb9d3f453842\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_aed93bb9d3f453842\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>The CARGO-SAFE PLUS\u2122 uses the principle of airborne ultrasonic transmission to identify gaps in hatch cover and door seals that water would otherwise find. A high-output ultrasonic transmitter is placed inside the sealed space \u2014 a cargo hold, or a compartment behind a watertight door \u2014 and fills that space with 40 kHz sound energy. Outside the space, a hand-held receiver equipped with a directional microphone scans the seal line. Wherever the seal is compromised \u2014 a perished gasket, a warped coaming, a distorted dog \u2014 ultrasound leaks through and registers on the receiver as an audible signal in the headphones and a visual decibel reading on the display.<\/p>\n<p>The PLUS adds two configuration modes on top of this same principle:<\/p>\n<ul>\n<li><strong>Hatch cover mode<\/strong> \u2014 transmitter placed on the deck of the hold; receiver swept along the coaming from outside.<\/li>\n<li><strong>Door mode<\/strong> \u2014 transmitter positioned inside the sealed compartment on the supplied tripod, or magnetically attached to a bulkhead adjacent to the door. The dedicated door-testing microphone lead connects to the receiver for a more controlled reading in the smaller acoustic volume.<\/li>\n<\/ul>\n<p>Both modes use the same ABS Type Approved instrument; only the positioning and the microphone configuration change.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-a6bef31e70c6845f3 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_a6bef31e70c6845f3\"><a aria-expanded=\"false\" aria-controls=\"a6bef31e70c6845f3\" role=\"button\" data-toggle=\"collapse\" data-target=\"#a6bef31e70c6845f3\" href=\"#a6bef31e70c6845f3\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">STEP BY STEP USING THE CARGO-SAFE PLUS\u2122<\/span><\/a><\/h4><\/div><div id=\"a6bef31e70c6845f3\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_a6bef31e70c6845f3\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>Two workflows, one kit.<\/p>\n<p><strong>Hatch cover testing<\/strong><\/p>\n<ol>\n<li>Open the carry case and check charge on the receiver and transmitter.<\/li>\n<li>Place the transmitter inside the empty cargo hold, at a central position where the ultrasound will distribute evenly.<\/li>\n<li>Switch the transmitter on and close the hatch covers as they would be during a loaded voyage.<\/li>\n<li>Working along the deck, scan the receiver along the coaming seal, listening through headphones and watching the dB reading.<\/li>\n<li>Mark any point where the signal spikes \u2014 this is a potential leak path.<\/li>\n<li>Once the full perimeter is scanned, repeat on the opposite edge to confirm readings.<\/li>\n<li>Power down and repack.<\/li>\n<\/ol>\n<p><strong>Watertight and weathertight door testing<\/strong><\/p>\n<ol>\n<li>Open the carry case and extract the tripod, adapter plate and door-testing microphone lead alongside the standard receiver and transmitter.<\/li>\n<li>Position the tripod inside the compartment behind the door under test. Fit the adapter plate to the tripod head.<\/li>\n<li>Mount the magnetic transmitter onto the adapter plate \u2014 the built-in magnets hold it securely. Alternatively, mount the transmitter on a steel bulkhead near, but not attached to, the door frame.<\/li>\n<li>Switch the transmitter on and close the door as it would be secured at sea, with all dogs engaged.<\/li>\n<li>Connect the door-testing microphone lead to the receiver for a measured response in the smaller space.<\/li>\n<li>From outside the door, scan the microphone probe slowly around the seal perimeter \u2014 around the frame, dogs, hinges and any threshold.<\/li>\n<li>Note and mark any leak signatures.<\/li>\n<li>Power down and return all components to the case.<\/li>\n<\/ol>\n<p>A single door can typically be tested in under ten minutes once access is established; a hatch cover in a similar timeframe.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-2a8058554e885fa43 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_2a8058554e885fa43\"><a aria-expanded=\"false\" aria-controls=\"2a8058554e885fa43\" role=\"button\" data-toggle=\"collapse\" data-target=\"#2a8058554e885fa43\" href=\"#2a8058554e885fa43\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">WHAT IS UT TESTING?<\/span><\/a><\/h4><\/div><div id=\"2a8058554e885fa43\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_2a8058554e885fa43\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>Ultrasonic Testing, or UT, is a non-destructive inspection method that uses high-frequency sound \u2014 typically above the range of human hearing, at around 40 kHz \u2014 to locate defects or gaps in a sealed structure. In marine tightness applications the principle is simple: sound energy, like water, will find any opening that exists. By filling a sealed space with ultrasound and scanning the outer seal with a directional microphone, a surveyor can map leak paths without pouring a single litre of water.<\/p>\n<p>UT testing has four practical advantages over traditional hose testing:<\/p>\n<ul>\n<li><strong>One-person operation.<\/strong> A single surveyor can run the entire test \u2014 set the transmitter, close up, and walk the receiver round the seal. No second pair of hands required, no second day rate.<\/li>\n<li><strong>No water used.<\/strong> Nothing to collect, dispose of, or run off the deck into port waters.<\/li>\n<li><strong>Works in freezing conditions.<\/strong> Sub-zero temperatures stop hose testing cold; ultrasound does not.<\/li>\n<li><strong>Faster and cleaner.<\/strong> A vessel can be covered in a fraction of the time a hose test takes, with no wet cargo, no wet decks and no turnaround delay.<\/li>\n<\/ul>\n<p>UT testing is accepted by all major classification societies and by the IACS for hatch cover tightness inspections, and is routinely used by P&amp;I clubs, flag state inspectors and port state control surveyors.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-234db97704a3a19d2 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_234db97704a3a19d2\"><a aria-expanded=\"false\" aria-controls=\"234db97704a3a19d2\" role=\"button\" data-toggle=\"collapse\" data-target=\"#234db97704a3a19d2\" href=\"#234db97704a3a19d2\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">WHAT CAN CARGO-SAFE PLUS\u2122 DO?<\/span><\/a><\/h4><\/div><div id=\"234db97704a3a19d2\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_234db97704a3a19d2\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>The PLUS is built for surveyors who attend a vessel and need to cover more than one inspection scope in a single visit. In hatch-cover mode it performs every test the original CARGO-SAFE\u2122 does \u2014 and in door mode it extends seamlessly to watertight and weathertight closures.<\/p>\n<p><strong>Hatch covers and access openings<\/strong><\/p>\n<ul>\n<li>Main cargo hatch covers of any size, including on capesize bulkers and ore carriers<\/li>\n<li>Bow visors and bow doors<\/li>\n<li>Stern doors and ramps<\/li>\n<li>Side loading doors<\/li>\n<li>Tween deck hatches<\/li>\n<\/ul>\n<p><strong>Watertight and weathertight doors<\/strong><\/p>\n<ul>\n<li>Accommodation entrance doors<\/li>\n<li>Wheelhouse and bridge-wing access doors<\/li>\n<li>Engine room watertight doors<\/li>\n<li>Bulkhead doors between compartments<\/li>\n<li>Emergency exit doors and escape hatches<\/li>\n<\/ul>\n<p>If it is a hatch, door or seal and it needs to stay weathertight or watertight, the PLUS can test it.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-0e53f9fedcdc1707d fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_0e53f9fedcdc1707d\"><a aria-expanded=\"false\" aria-controls=\"0e53f9fedcdc1707d\" role=\"button\" data-toggle=\"collapse\" data-target=\"#0e53f9fedcdc1707d\" href=\"#0e53f9fedcdc1707d\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">CARGO-SAFE PLUS\u2122 FEATURES<\/span><\/a><\/h4><\/div><div id=\"0e53f9fedcdc1707d\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_0e53f9fedcdc1707d\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p><strong>What is in the case<\/strong><\/p>\n<ul>\n<li>Ultrasonic receiver with digital dB display and headphone output<\/li>\n<li>157 dB ultrasonic transmitter, ABS Type Approved<\/li>\n<li>Transmitter internal magnets, for hands-free mounting on steel surfaces or on the adapter plate<\/li>\n<li>Standard receiver probe for hatch cover testing<\/li>\n<li>Door-testing microphone lead for controlled readings in confined spaces<\/li>\n<li>Tripod, collapsible and height-adjustable <em>(PLUS-only)<\/em><\/li>\n<li>Adapter plate for the tripod head, magnet-compatible <em>(PLUS-only)<\/em><\/li>\n<li>Closed-back headphones<\/li>\n<li>High-quality rechargeable AA batteries for the receiver and transmitter<\/li>\n<li>AA battery charger<\/li>\n<li>Stormproof carry case<\/li>\n<li>Full set of leads and accessories<\/li>\n<\/ul>\n<p><strong>Key capabilities<\/strong><\/p>\n<ul>\n<li>ABS Type Approved ultrasonic tester<\/li>\n<li>A single kit that covers hatch cover, watertight door and weathertight door inspections<\/li>\n<li>157 dB transmitter output for reliable penetration in large cargo holds<\/li>\n<li>Precision door mode via the dedicated microphone lead for smaller spaces<\/li>\n<li>One-person operation \u2014 no second surveyor required<\/li>\n<li>IP66 environmental rating \u2014 stormproof and deck-ready<\/li>\n<li>Operates in sub-zero temperatures<\/li>\n<li>Powered by rechargeable AA batteries with charger included \u2014 no proprietary battery packs to source overseas<\/li>\n<li>3-year warranty on receiver and transmitter<\/li>\n<li>6-month warranty on accessories<\/li>\n<li>Free lifetime technical support by phone and email<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-ae5f7b5a0cda5267a fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_ae5f7b5a0cda5267a\"><a aria-expanded=\"false\" aria-controls=\"ae5f7b5a0cda5267a\" role=\"button\" data-toggle=\"collapse\" data-target=\"#ae5f7b5a0cda5267a\" href=\"#ae5f7b5a0cda5267a\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">CALIBRATION AND MAINTENANCE OF YOUR CARGO-SAFE PLUS\u2122<\/span><\/a><\/h4><\/div><div id=\"ae5f7b5a0cda5267a\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_ae5f7b5a0cda5267a\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>Class Instrumentation Limited is the only manufacturer in the sector that recalibrates its ultrasonic testers on a five-year cycle \u2014 not annually, not every two years, but every five. The CARGO-SAFE PLUS\u2122 is engineered to hold its accuracy across that cycle, so your surveyors are not repeatedly losing the instrument to the calibration bench.<\/p>\n<p><strong>Routine care between jobs<\/strong><\/p>\n<ul>\n<li>Wipe the receiver and transmitter down after each attendance; salt residue is the main enemy.<\/li>\n<li>Keep the tripod clean and occasionally lubricate the locking collars.<\/li>\n<li>Charge the receiver and transmitter fully before each job.<\/li>\n<li>Store the unit in its carry case, closed and latched, between uses.<\/li>\n<\/ul>\n<p><strong>Scheduled recalibration<\/strong><\/p>\n<p>The full recalibration service is carried out in-house at our UK facility. We collect the unit, recalibrate, reissue the ABS-compliant certificate, and return the unit in its carry case. Customers receive a courtesy reminder when the five-year window is approaching.<\/p>\n<p>The PLUS accessories \u2014 tripod, adapter plate, headphones, leads \u2014 do not require recalibration. Individual spares are available if any accessory is damaged.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-e9aa7e766580f8c1c fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_e9aa7e766580f8c1c\"><a aria-expanded=\"false\" aria-controls=\"e9aa7e766580f8c1c\" role=\"button\" data-toggle=\"collapse\" data-target=\"#e9aa7e766580f8c1c\" href=\"#e9aa7e766580f8c1c\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">CERTIFICATES AND ABS TYPE APPROVAL COMPLIANCE OF CARGO-SAFE PLUS\u2122<\/span><\/a><\/h4><\/div><div id=\"e9aa7e766580f8c1c\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_e9aa7e766580f8c1c\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>The CARGO-SAFE PLUS\u2122 is covered by the same ABS Type Approval as the standard CARGO-SAFE\u2122, because the core instrument \u2014 receiver and transmitter \u2014 is identical. The additional PLUS components \u2014 tripod, adapter plate and door-testing microphone lead \u2014 are accessory items that configure the instrument for a wider range of inspections; they do not alter the approved measurement method.<\/p>\n<p>Each PLUS unit is supplied with:<\/p>\n<ul>\n<li>ABS Type Approval certificate<\/li>\n<li>Calibration certificate at date of dispatch<\/li>\n<li>Declaration of conformity<\/li>\n<li>Three-year manufacturer warranty documentation<\/li>\n<\/ul>\n<p>The instrument also complies with the tightness-testing guidance issued by the major classification societies for the inspection of hatch covers and watertight closures.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-1e6eff1d92df5bc47 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_1e6eff1d92df5bc47\"><a aria-expanded=\"false\" aria-controls=\"1e6eff1d92df5bc47\" role=\"button\" data-toggle=\"collapse\" data-target=\"#1e6eff1d92df5bc47\" href=\"#1e6eff1d92df5bc47\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">CARGO-SAFE PLUS\u2122 TECHNICAL SPECIFICATION<\/span><\/a><\/h4><\/div><div id=\"1e6eff1d92df5bc47\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_1e6eff1d92df5bc47\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>The core instrument is identical to the standard CARGO-SAFE\u2122; only the PLUS-only accessory items are additional.<\/p>\n<p><strong>Transmitter<\/strong><\/p>\n<ul>\n<li>Output: 157 dB<\/li>\n<li>Operating frequency: 40 kHz ultrasonic<\/li>\n<li>Mounting: internal magnets for attachment to the adapter plate or steel bulkheads<\/li>\n<li>Power: high-quality rechargeable AA batteries supplied, charger included<\/li>\n<li>Environmental protection: IP66<\/li>\n<\/ul>\n<p><strong>Receiver<\/strong><\/p>\n<ul>\n<li>Digital dB display<\/li>\n<li>Headphone output<\/li>\n<li>Standard hatch-cover probe input<\/li>\n<li>PLUS-only: door-testing microphone lead input<\/li>\n<li>Power: high-quality rechargeable AA batteries supplied, charger included<\/li>\n<li>Environmental protection: IP66<\/li>\n<\/ul>\n<p><strong>Tripod (PLUS-only)<\/strong><\/p>\n<ul>\n<li>Collapsible, height-adjustable<\/li>\n<li>Material: [Ken to confirm \u2014 aluminium or carbon]<\/li>\n<li>Maximum working height: [Ken to confirm]<\/li>\n<li>Packed length: [Ken to confirm]<\/li>\n<\/ul>\n<p><strong>Adapter plate (PLUS-only)<\/strong><\/p>\n<ul>\n<li>Steel construction, compatible with transmitter magnets<\/li>\n<li>Fits standard tripod head<\/li>\n<\/ul>\n<p><strong>Door-testing microphone lead (PLUS-only)<\/strong><\/p>\n<ul>\n<li>Length: [Ken to confirm]<\/li>\n<li>Connector: compatible with receiver probe input<\/li>\n<\/ul>\n<p><strong>Kit weight and dimensions<\/strong><\/p>\n<ul>\n<li>Full PLUS kit, case and all components: [Ken to confirm]<\/li>\n<\/ul>\n<p><strong>Environmental<\/strong><\/p>\n<ul>\n<li>Operating temperature range: down to sub-zero<\/li>\n<li>IP rating: IP66<\/li>\n<li>Stormproof carry case<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-ef7fd3b7be77b14b9 fusion-toggle-has-divider\" style=\"--awb-title-color:#ff5e14;--awb-content-color:#4a4e57;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_ef7fd3b7be77b14b9\"><a aria-expanded=\"false\" aria-controls=\"ef7fd3b7be77b14b9\" role=\"button\" data-toggle=\"collapse\" data-target=\"#ef7fd3b7be77b14b9\" href=\"#ef7fd3b7be77b14b9\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">ACCREDITATIONS<\/span><\/a><\/h4><\/div><div id=\"ef7fd3b7be77b14b9\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_ef7fd3b7be77b14b9\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<ul>\n<li>ABS Type Approved<\/li>\n<li>Designed and manufactured in Great Britain<\/li>\n<li>ISO 9001-certified manufacturer<\/li>\n<li>Trusted by marine surveyors, P&amp;I clubs and classification societies worldwide<\/li>\n<\/ul>\n<div class=\"fusion-image-carousel fusion-image-carousel-fixed fusion-image-carousel-2\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel awb-carousel--carousel awb-swiper-dots-position-bottom\" data-layout=\"carousel\" data-autoplay=\"yes\" data-autoplayspeed=\"2500\" data-autoplaypause=\"no\" data-loop=\"yes\" data-columns=\"5\" data-columnsmedium=\"1\" data-columnssmall=\"1\" 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