{"product_id":"hella-marine-002952811-high-tone-disc-horn-12v-115db","title":"Hella Marine 002952811 High-Tone Disc Horn 12V 115dB","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella Marine 002952811 is a compact high-tone disc horn that puts out a sharp 115 decibels at 400 hertz on 12 volts. Galvanized housing, silver-and-black diaphragm, mounting brackets in the box. It's a loud, corrosion-resistant warning horn that mounts almost anywhere and just keeps working.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Hella Marine 002952811 is a single high-tone disc horn built to cut through wind, engine noise, and a crowded harbor. It runs on a standard 12-volt system, pulls 76 watts, and puts out a sharp 115 decibels at 400 hertz. That's loud. Loud enough that other boaters hear you the first time, whether you're signaling a blind bend on the river or letting a drifting boat know you're there. The whole thing measures 3.8 inches round, so it tucks into tight engine wells and console spaces without a fight.\u003c\/p\u003e\n\u003cp\u003eAt 400 hertz this is the high note in the classic two-tone setup. On its own it's crisp and penetrating, the kind of sound that carries. Run it solo as a dependable warning horn, or pair it with a Hella low-tone disc horn and wire both to the same button for that full, layered blast you hear on bigger boats and commercial rigs. Two horns, two frequencies, one switch. It's a simple upgrade that makes a real difference in how far your signal travels.\u003c\/p\u003e\n\u003cp\u003eA word on why loudness matters out there. Sound behaves differently over open water than it does on a road. Wind, distance, and the drone of your own motor all eat into how far your signal reaches. A horn rated at 115 decibels gives you the headroom to actually be heard across a busy anchorage or over the noise of a wake. When you're maneuvering in fog or tight quarters, that margin is exactly what you want.\u003c\/p\u003e\n\u003cp\u003eBuild quality is where Hella earns its name. The housing is galvanized metal, so it shrugs off spray, humidity, and the slow corrosion that kills cheaper horns after a season or two. The diaphragm is a silver and black disc design, tuned for a clean, consistent tone every time you hit the button. Hella calls their gear fit-and-forget, and on the water that matters. You mount it once, wire it once, and it just works, year after year.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward. The horn ships with mounting brackets, so you've got what you need to get it bolted down. Pick a spot that's protected from direct standing water and angle the horn opening slightly downward or forward so it can drain and stay clear. Behind a bow rail, under a console lip, or inside an engine box all work well. Keep the diaphragm face away from anything that would muffle it.\u003c\/p\u003e\n\u003cp\u003eOn the wiring side, do the math with us. At 76 watts on a 12-volt system this horn draws right around 6.3 amps. That's enough current that you'll want to run it through a relay rather than straight off a dash switch, especially if you add a second horn. Wire the button to trigger the relay, feed the horn from a fused circuit, and give it a clean ground. A solid ground is the number one thing people get wrong, and it's usually why a horn sounds weak or cuts out. Ten minutes of care here pays off for years.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Any boater who wants a genuinely loud warning horn without overthinking it. It's a 12-volt disc horn, so it's just as at home on a center console, a pontoon, a sailboat, or a small cruiser. And because it's built to Hella's automotive and commercial standards, plenty of folks run these on trucks, trailers, tractors, and off-road rigs too. If you need a horn that survives a harsh environment and still sounds off loud and clear, this is a safe pick.\u003c\/p\u003e\n\u003cp\u003eGive it a quick test now and then, the same way you'd check your nav lights before a trip. Hit the button, confirm it's crisp and full, and make sure the mounting bolts are still snug after a rough season. There's not much to maintain on a sealed disc horn like this, which is exactly the point. Rinse off salt when you rinse the rest of the boat and it'll keep answering the button.\u003c\/p\u003e\n\u003cp\u003eOne horn, one part number, no guesswork. If your old horn has gone quiet or gravelly, or your boat never had a proper one to begin with, the 002952811 is an easy fix. Add a second unit later if you want the two-tone sound. Either way you're getting a compact, corrosion-resistant horn from a brand that's been building them for well over a hundred years.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e115 decibel output at 400 Hz high-tone so it cuts through wind, engine noise, and a crowded harbor\u003c\/li\u003e\n  \u003cli\u003e12-volt operation drawing 76 watts (about 6.3 amps), a clean fit for standard marine and vehicle electrical systems\u003c\/li\u003e\n  \u003cli\u003e3.8-inch round disc design tucks into tight console, bow, and engine-box spaces\u003c\/li\u003e\n  \u003cli\u003eGalvanized metal housing resists spray, humidity, and salt corrosion for fit-and-forget service\u003c\/li\u003e\n  \u003cli\u003eSilver and black diaphragm tuned for a clean, consistent tone every press\u003c\/li\u003e\n  \u003cli\u003eMounting brackets included, so you can bolt it down straight out of the box\u003c\/li\u003e\n  \u003cli\u003eHigh-tone 400 Hz pairs with a Hella low-tone disc horn for a full two-tone signal\u003c\/li\u003e\n  \u003cli\u003eBuilt to Hella's automotive and commercial standards, at home on boats, trucks, trailers, and off-road rigs\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 Hella Marine 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\u003eHow loud is the Hella 002952811 horn?\u003c\/summary\u003e\n    \u003cp\u003eIt puts out 115 decibels at 400 hertz. That's a sharp, high-tone note loud enough to be heard across a busy anchorage or over your own engine.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage and current does it need?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 12-volt horn that pulls 76 watts, or right around 6.3 amps. Run it through a relay off a fused circuit rather than straight from a dash switch.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a high-tone or low-tone horn?\u003c\/summary\u003e\n    \u003cp\u003eHigh-tone. It sounds at 400 hertz, which is the higher note in a two-tone pair. On its own it's crisp and penetrating.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I make it a two-tone horn?\u003c\/summary\u003e\n    \u003cp\u003eYes. Wire it together with a Hella low-tone disc horn on the same button and you get the layered two-tone blast. This unit is a single horn.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with mounting brackets?\u003c\/summary\u003e\n    \u003cp\u003eYes. The 002952811 ships with mounting brackets, so you've got what you need to bolt it in place.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it suitable for saltwater use?\u003c\/summary\u003e\n    \u003cp\u003eThe housing is galvanized metal, built to resist spray and corrosion. Mount it where it can drain, rinse off salt when you wash the boat, and it holds up well.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow big is it?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 3.8-inch round disc horn, compact enough to fit tight console, bow, or engine-box spaces.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere should I mount it?\u003c\/summary\u003e\n    \u003cp\u003ePick a protected spot and angle the opening slightly down or forward so water drains out. Behind a bow rail, under a console lip, or inside an engine box all work. Keep the face clear of anything that would muffle it.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it on a vehicle instead of a boat?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's built to Hella's automotive and commercial standards, so it works on trucks, trailers, tractors, and off-road rigs running a 12-volt system.\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\u003eHella Marine High-Tone Disc Horn 002952811\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e002952811\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e760687138068\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eM26 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNumber of Horns\u003c\/th\u003e\n\u003ctd\u003eOne\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTone\u003c\/th\u003e\n\u003ctd\u003eHigh-Tone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFrequency\u003c\/th\u003e\n\u003ctd\u003e400 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSound Output\u003c\/th\u003e\n\u003ctd\u003e115 Decibels\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12 Volt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e76 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e3.8 Inch Round\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiaphragm\u003c\/th\u003e\n\u003ctd\u003eSilver\/Black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHousing\u003c\/th\u003e\n\u003ctd\u003eGalvanized Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting Brackets\u003c\/th\u003e\n\u003ctd\u003eIncluded\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\": \"How loud is the Hella 002952811 horn?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It puts out 115 decibels at 400 hertz. That's a sharp, high-tone note loud enough to be heard across a busy anchorage or over your own engine.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage and current does it need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 12-volt horn that pulls 76 watts, or right around 6.3 amps. Run it through a relay off a fused circuit rather than straight from a dash switch.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a high-tone or low-tone horn?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"High-tone. It sounds at 400 hertz, which is the higher note in a two-tone pair. On its own it's crisp and penetrating.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I make it a two-tone horn?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Wire it together with a Hella low-tone disc horn on the same button and you get the layered two-tone blast. This unit is a single horn.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with mounting brackets?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The 002952811 ships with mounting brackets, so you've got what you need to bolt it in place.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it suitable for saltwater use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The housing is galvanized metal, built to resist spray and corrosion. Mount it where it can drain, rinse off salt when you wash the boat, and it holds up well.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How big is it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 3.8-inch round disc horn, compact enough to fit tight console, bow, or engine-box spaces.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Where should I mount it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Pick a protected spot and angle the opening slightly down or forward so water drains out. Behind a bow rail, under a console lip, or inside an engine box all work. Keep the face clear of anything that would muffle it.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it on a vehicle instead of a boat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's built to Hella's automotive and commercial standards, so it works on trucks, trailers, tractors, and off-road rigs running a 12-volt system.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella Marine","offers":[{"title":"Default Title","offer_id":45080654151773,"sku":"2010494","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_ddab3340-7fd8-44af-a698-fc9a9d186732.jpg?v=1789990959","url":"https:\/\/nvnmarine.com\/products\/hella-marine-002952811-high-tone-disc-horn-12v-115db","provider":"NVN Marine","version":"1.0","type":"link"}