{"product_id":"gost-dc-wireless-marine-door-hatch-sensor","title":"GOST-DC Wireless Marine Door \u0026 Hatch Sensor","description":"\u003cp class=\"nvn-hero\"\u003eThe GOST-DC is a wireless, waterproof door and hatch contact sensor that reports every opening straight to your GOST security system. It mounts almost anywhere on the boat, runs on battery power with a signal range up to 115 feet, and needs no wiring through the hull. Simple protection for cabin doors, engine hatches, and deck lockers.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe GOST-DC is a wireless door and hatch contact sensor built for the way boats actually get broken into. Somebody pops a cabin door, lifts an engine hatch, or cracks open a deck locker while the boat sits unattended at the dock. This little contact catches that moment and reports it back to your GOST security system, so you know the second something opens that shouldn't.\u003c\/p\u003e\n\u003cp\u003eIt's a two-piece magnetic contact. One half mounts to the frame, the other to the door or hatch itself. When the two separate, the sensor fires. The magnet and the transmitter don't touch, so there's no wear point to fail. Simple, proven, and exactly what you want guarding an entry point. There's nothing to fuss with once it's set.\u003c\/p\u003e\n\u003cp\u003eThink about every opening on your boat that a thief or a curious dockwalker could use. The companionway. The cabin door. Engine room hatches. Lazarettes and cockpit lockers where you stash electronics and tackle. Add one to the outboard well or the battery compartment too if that's where your valuables live. Each one is a good candidate for a GOST-DC. Because it's fully wireless, you can protect openings that would be a nightmare to hard-wire, and you can add contacts as you go instead of running cable through the bilge.\u003c\/p\u003e\n\u003cp\u003eThat wireless design is the whole point. No drilling long runs, no fishing wire behind a headliner, no splicing into the boat's DC system. The GOST-DC is battery powered and talks to your base station over the air, with a signal range of up to 115 feet. On most powerboats and smaller sailboats that covers the whole vessel from a single station. On a bigger boat, or one with a cored or metal hull, expect the real-world range to come down, since all that structure eats into RF. If you're rigging up a larger yacht, plan on a repeater to bridge the gaps.\u003c\/p\u003e\n\u003cp\u003eIt's waterproof, so you're not limited to dry cabin spaces. Mount it on an exposed deck hatch or a cockpit locker and it'll shrug off spray and rain. One tip from experience: hit the battery and antenna contacts with a little dielectric grease before you close it up. The seal holds fine, but salt air will find any bare metal connection over a season, and a dab of grease keeps corrosion from creeping in. For the mount itself, we like quality VHB tape backed up with a bead of marine sealant. Screws alone tend to work loose on a hatch that slams around in a chop.\u003c\/p\u003e\n\u003cp\u003eThis version ships without the LED status indicator. That means there's no little light on the sensor blinking its state. You check arm and open status from your GOST base station or app instead, which is honestly where you'll be looking anyway. During install it's worth walking through an open-and-close test at the station so you can confirm each contact is talking before you button everything up.\u003c\/p\u003e\n\u003cp\u003eOne more real-world note. Contacts on a flexing hatch or a loose companionway board can throw the occasional false trip if there's a lot of play in the opening. Mount both halves on solid, well-aligned surfaces and keep the gap tight when closed, and you'll get clean, reliable triggers. Do it right and this sensor just disappears into the background, doing its job every time you step off the boat.\u003c\/p\u003e\n\u003cp\u003ePaired with the rest of your GOST security and monitoring gear, the GOST-DC turns every door and hatch into a monitored entry point. It's a small piece of a serious system, and it's the kind of quiet insurance that lets you leave the boat and actually stop thinking about it. Set it once, and it keeps watch whether you're across the marina or across the country.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eUp to 115-foot wireless signal range covers most powerboats and smaller sailboats from a single base station\u003c\/li\u003e\n  \u003cli\u003eFully wireless and battery powered, so there's no cable to run through the hull\u003c\/li\u003e\n  \u003cli\u003eTwo-piece magnetic contact trips the moment a door or hatch opens\u003c\/li\u003e\n  \u003cli\u003eWaterproof housing stands up to spray and rain on exposed deck hatches and cockpit lockers\u003c\/li\u003e\n  \u003cli\u003eWall-mount design fits cabin doors, companionways, engine hatches, lazarettes, and lockers\u003c\/li\u003e\n  \u003cli\u003eReports openings directly to your GOST security and monitoring system\u003c\/li\u003e\n  \u003cli\u003eNo LED indicator on this version, status is checked at the base station or app\u003c\/li\u003e\n  \u003cli\u003eCompact contact installs in minutes with tape and sealant, no wiring required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized GOST reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the wireless range of the GOST-DC?\u003c\/summary\u003e\n    \u003cp\u003eIt signals up to 115 feet back to your base station. That covers most powerboats and smaller sailboats from one station. On larger boats, or hulls with a lot of metal or coring, real-world range drops, so plan on a repeater to fill the gaps.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the GOST-DC waterproof?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's rated waterproof, so you can mount it on exposed deck hatches and cockpit lockers, not just dry cabin spaces. A dab of dielectric grease on the contacts helps keep salt air from corroding the connections over time.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this sensor have an LED status light?\u003c\/summary\u003e\n    \u003cp\u003eNo. This version ships without the LED indicator. You check arm and open status from your GOST base station or app instead. During install, run an open-and-close test at the station to confirm each contact is reporting.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the GOST-DC need any wiring?\u003c\/summary\u003e\n    \u003cp\u003eNo. It's fully wireless and battery powered, so there's no cable to run through the hull. You mount the two halves and it talks to your base station over the air.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does a door and hatch contact sensor work?\u003c\/summary\u003e\n    \u003cp\u003eIt's a two-piece magnetic contact. One half goes on the frame, the other on the door or hatch. When the two separate, the sensor trips and alerts your system. There's no physical wear point, since the magnet and transmitter never touch.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere should I mount it on the boat?\u003c\/summary\u003e\n    \u003cp\u003eAnywhere something opens that you want watched. Cabin doors, the companionway, engine hatches, lazarettes, and cockpit lockers are all good spots. Mount both halves on solid, well-aligned surfaces and keep the gap tight when closed for clean triggers.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does the GOST-DC work with?\u003c\/summary\u003e\n    \u003cp\u003eIt's part of the GOST security and monitoring lineup and reports openings to your GOST system. It's a sensor, not a standalone alarm, so it does its job as one piece of a larger GOST setup.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the best way to mount it so it stays put?\u003c\/summary\u003e\n    \u003cp\u003eWe like quality VHB tape backed by a bead of marine sealant. Screws alone tend to work loose on a hatch that slams in a chop. Solid mounting also cuts down on false trips from a flexing hatch or a loose board.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eGOST Wireless Door\/Hatch Contact Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGOST\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eGOST-DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e860016505797\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDoor and Hatch Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting Type\u003c\/th\u003e\n\u003ctd\u003eWall Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDetection Range\u003c\/th\u003e\n\u003ctd\u003eUp to 115 Feet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003eWireless\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLED Status Indicator\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWaterproof\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSensor Type\u003c\/th\u003e\n\u003ctd\u003eMagnetic Contact\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower Source\u003c\/th\u003e\n\u003ctd\u003eBattery Powered\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the wireless range of the GOST-DC?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It signals up to 115 feet back to your base station. That covers most powerboats and smaller sailboats from one station. On larger boats, or hulls with a lot of metal or coring, real-world range drops, so plan on a repeater to fill the gaps.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the GOST-DC waterproof?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's rated waterproof, so you can mount it on exposed deck hatches and cockpit lockers, not just dry cabin spaces. A dab of dielectric grease on the contacts helps keep salt air from corroding the connections over time.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does this sensor have an LED status light?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This version ships without the LED indicator. You check arm and open status from your GOST base station or app instead. During install, run an open-and-close test at the station to confirm each contact is reporting.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does the GOST-DC need any wiring?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. It's fully wireless and battery powered, so there's no cable to run through the hull. You mount the two halves and it talks to your base station over the air.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does a door and hatch contact sensor work?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a two-piece magnetic contact. One half goes on the frame, the other on the door or hatch. When the two separate, the sensor trips and alerts your system. There's no physical wear point, since the magnet and transmitter never touch.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Where should I mount it on the boat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Anywhere something opens that you want watched. Cabin doors, the companionway, engine hatches, lazarettes, and cockpit lockers are all good spots. Mount both halves on solid, well-aligned surfaces and keep the gap tight when closed for clean triggers.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does the GOST-DC work with?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's part of the GOST security and monitoring lineup and reports openings to your GOST system. It's a sensor, not a standalone alarm, so it does its job as one piece of a larger GOST setup.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the best way to mount it so it stays put?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"We like quality VHB tape backed by a bead of marine sealant. Screws alone tend to work loose on a hatch that slams in a chop. Solid mounting also cuts down on false trips from a flexing hatch or a loose board.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"GOST","offers":[{"title":"Default Title","offer_id":45076790345821,"sku":"2011412","price":206.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_02c601e9-af25-4a78-b218-8b09a6ef9c69.jpg?v=1789894719","url":"https:\/\/nvnmarine.com\/products\/gost-dc-wireless-marine-door-hatch-sensor","provider":"NVN Marine","version":"1.0","type":"link"}