{"product_id":"simrad-b75m-medium-chirp-thru-hull-transducer","title":"Simrad B75M Medium CHIRP Thru-Hull Transducer 9-Pin","description":"\u003cp class=\"nvn-hero\"\u003eThe Simrad B75M is a bronze thru-hull medium CHIRP transducer with a 9-pin xSonic connector. It sweeps 80 to 130 kHz for depth to 274 meters, adds a fast-response temperature sensor, and delivers the clean sonar returns that make CHIRP fishfinding worth the upgrade.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Simrad B75M is a bronze thru-hull transducer built for boaters who want real medium-band CHIRP performance out of their sonar. Instead of pinging at a single fixed frequency the way older transducers did, the B75M sweeps a continuous band from 80 to 130 kHz. That swept signal is what CHIRP is all about, and it's why the returns look so much cleaner. You get better target separation, so two fish stacked close together show as two marks instead of one blob, and you get clearer bottom detail and structure at depth. For anglers chasing suspended fish or reading bait balls, that difference is the whole reason to move up to a transducer like this.\u003c\/p\u003e\n\u003cp\u003eThe B75M is a medium-frequency unit, which is the band you want when you're fishing deeper water or want more reach out of your sonar. It reads down to about 274 meters, roughly 900 feet, so it covers offshore depths that a higher-frequency transducer can't reach. The tradeoff between medium and high CHIRP comes down to what you fish. Medium CHIRP like the B75M trades a little fine detail in the shallows for more depth penetration and a wider search area, which makes it the smart pick for deeper offshore work and mixed fishing where range matters.\u003c\/p\u003e\n\u003cp\u003ePhysically this is a thru-hull design with a bronze housing, meant to install through a fiberglass or wood hull for the cleanest possible acoustic path. Mounting the transducer element in direct contact with the water, rather than shooting through the hull, gives you the strongest signal and the best performance at speed and in deep water. The tilted-element design is matched to hull deadrise so the beam fires straight down even though the housing sits at the hull's angle, which keeps your depth readings honest and your bottom lock solid. It handles up to 600 watts of power, plenty to drive the medium CHIRP band hard.\u003c\/p\u003e\n\u003cp\u003eThe beam works across roughly a 24 to 16 degree cone as it sweeps the band, giving you a useful search footprint under the boat. A wider cone covers more water and helps you find fish and structure, while the CHIRP processing keeps that coverage sharp instead of muddy. Built into the transducer is a fast-response water temperature sensor, so your display shows surface temperature without a separate sender. On the water, temperature breaks are one of the best clues to where fish are holding, and having that reading built into the transducer is one less thing to install and wire.\u003c\/p\u003e\n\u003cp\u003eConnection is through the 9-pin xSonic connector, which plugs into compatible Simrad multifunction displays and sonar modules with a CHIRP-capable sonar port. That standardized connector keeps the install clean and makes it straightforward to match the transducer to the right display in your helm. If you're building a new sonar setup or upgrading an older single-frequency transducer, the B75M is the kind of component that lifts the performance of your whole system, because the transducer is where the sonar picture actually begins.\u003c\/p\u003e\n\u003cp\u003eGetting a thru-hull transducer installed correctly matters. The hole has to be in the right spot for clean water flow, the housing has to be bedded and sealed properly, and the tilt has to suit your hull's deadrise so the beam fires true. It's worth doing carefully, and it's worth doing once. If you're not certain the B75M is the right match for your hull and your display, reach out before you order and we'll help you confirm it fits your boat and your electronics.\u003c\/p\u003e\n\u003cp\u003eThink of the B75M as the foundation your sonar is built on. No matter how good your display and sonar processor are, they can only show what the transducer hears, so a quality thru-hull like this is where real performance starts. Match it to a capable CHIRP source and you'll see the difference in every screen, from a cleaner bottom line to better-defined fish arches to the confidence of a solid depth reading in deep water.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eMedium CHIRP thru-hull transducer that sweeps 80 to 130 kHz for clean, high-resolution returns\u003c\/li\u003e\n  \u003cli\u003eReads depth to about 274 meters (roughly 900 feet) for offshore and deep-water fishing\u003c\/li\u003e\n  \u003cli\u003eBronze housing designed for fiberglass or wood hulls\u003c\/li\u003e\n  \u003cli\u003eTilted-element design matched to hull deadrise so the beam fires straight down\u003c\/li\u003e\n  \u003cli\u003eHandles up to 600 watts of power\u003c\/li\u003e\n  \u003cli\u003eRoughly 24 to 16 degree beam cone for a useful search footprint under the boat\u003c\/li\u003e\n  \u003cli\u003eBuilt-in fast-response water temperature sensor, no separate sender needed\u003c\/li\u003e\n  \u003cli\u003e9-pin xSonic connector for compatible Simrad displays and sonar modules\u003c\/li\u003e\n  \u003cli\u003eExcellent target separation for reading stacked fish and bait balls\u003c\/li\u003e\n  \u003cli\u003eMedium band favors depth penetration and search area over shallow-water fine detail\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 Simrad 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 is the difference between medium and high CHIRP for this transducer?\u003c\/summary\u003e\n    \u003cp\u003eThe B75M is a medium CHIRP unit that sweeps 80 to 130 kHz. Medium CHIRP trades a little fine detail in the shallows for more depth penetration and a wider search area, which makes it the better choice for deeper offshore water and mixed fishing where reach matters. A high CHIRP transducer favors fine detail and target separation in shallower water instead.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow deep can the Simrad B75M read?\u003c\/summary\u003e\n    \u003cp\u003eIt reads down to about 274 meters, which is roughly 900 feet, under good conditions. That depth range covers most offshore fishing and puts the bottom and any structure on your screen well beyond what a higher-frequency transducer can reach.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat frequency does it operate at?\u003c\/summary\u003e\n    \u003cp\u003eIt sweeps a continuous medium CHIRP band from 80 to 130 kHz rather than pinging at a single fixed frequency. That swept signal is what gives CHIRP its clean returns, strong target separation, and clear bottom detail at depth.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat kind of hull is it made for?\u003c\/summary\u003e\n    \u003cp\u003eIt's a thru-hull design with a bronze housing intended for fiberglass or wood hulls. The tilted element is matched to hull deadrise so the beam fires straight down even though the housing sits at the hull's angle. Contact us with your deadrise and we'll confirm the fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does it connect to my display?\u003c\/summary\u003e\n    \u003cp\u003eIt uses a 9-pin xSonic connector that plugs into compatible Simrad multifunction displays and sonar modules with a CHIRP-capable sonar port. That keeps the install clean and makes matching the transducer to the right display straightforward.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it include a temperature sensor?\u003c\/summary\u003e\n    \u003cp\u003eYes. A fast-response water temperature sensor is built into the transducer, so your display shows surface water temperature without a separate sender. Temperature breaks are one of the best clues to where fish are holding, so having it built in is handy.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much power does it handle?\u003c\/summary\u003e\n    \u003cp\u003eThe B75M handles up to 600 watts, which is plenty to drive the medium CHIRP band hard and get strong returns at depth. Match it to a CHIRP sonar source rated for that power for the best results.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy choose a thru-hull over a transom-mount transducer?\u003c\/summary\u003e\n    \u003cp\u003eA thru-hull puts the transducer element in direct contact with the water for the cleanest acoustic path, which gives the strongest signal and the best performance at speed and in deep water. It takes a more involved install, but for serious offshore fishing the performance is worth it.\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\u003eSimrad B75M Medium CHIRP Thru-Hull Transducer 9-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSimrad\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e000-16194-001\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e9420064132201\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eThru-Hull CHIRP Transducer\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFrequency Band\u003c\/th\u003e\n\u003ctd\u003eMedium CHIRP, 80 to 130 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMax Depth\u003c\/th\u003e\n\u003ctd\u003e274 m (about 900 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBeam Cone\u003c\/th\u003e\n\u003ctd\u003eApproximately 24 to 16 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower Handling\u003c\/th\u003e\n\u003ctd\u003e600 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003eThru-hull, tilted element\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHousing Material\u003c\/th\u003e\n\u003ctd\u003eBronze\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHull Compatibility\u003c\/th\u003e\n\u003ctd\u003eFiberglass or wood\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnector\u003c\/th\u003e\n\u003ctd\u003e9-pin xSonic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTemperature Sensor\u003c\/th\u003e\n\u003ctd\u003eBuilt-in, fast-response\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 is the difference between medium and high CHIRP for this transducer?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The B75M is a medium CHIRP unit that sweeps 80 to 130 kHz. Medium CHIRP trades a little fine detail in the shallows for more depth penetration and a wider search area, which makes it the better choice for deeper offshore water and mixed fishing where reach matters. A high CHIRP transducer favors fine detail and target separation in shallower water instead.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How deep can the Simrad B75M read?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It reads down to about 274 meters, which is roughly 900 feet, under good conditions. That depth range covers most offshore fishing and puts the bottom and any structure on your screen well beyond what a higher-frequency transducer can reach.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What frequency does it operate at?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It sweeps a continuous medium CHIRP band from 80 to 130 kHz rather than pinging at a single fixed frequency. That swept signal is what gives CHIRP its clean returns, strong target separation, and clear bottom detail at depth.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What kind of hull is it made for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a thru-hull design with a bronze housing intended for fiberglass or wood hulls. The tilted element is matched to hull deadrise so the beam fires straight down even though the housing sits at the hull's angle. Contact us with your deadrise and we'll confirm the fit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does it connect to my display?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It uses a 9-pin xSonic connector that plugs into compatible Simrad multifunction displays and sonar modules with a CHIRP-capable sonar port. That keeps the install clean and makes matching the transducer to the right display straightforward.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it include a temperature sensor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. A fast-response water temperature sensor is built into the transducer, so your display shows surface water temperature without a separate sender. Temperature breaks are one of the best clues to where fish are holding, so having it built in is handy.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much power does it handle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The B75M handles up to 600 watts, which is plenty to drive the medium CHIRP band hard and get strong returns at depth. Match it to a CHIRP sonar source rated for that power for the best results.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why choose a thru-hull over a transom-mount transducer?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A thru-hull puts the transducer element in direct contact with the water for the cleanest acoustic path, which gives the strongest signal and the best performance at speed and in deep water. It takes a more involved install, but for serious offshore fishing the performance is worth it.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Simrad","offers":[{"title":"Default Title","offer_id":44782639906909,"sku":"2006781","price":998.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_1dbdea32-02ad-44cd-939b-78c15ab813d3.png?v=1784854611","url":"https:\/\/nvnmarine.com\/products\/simrad-b75m-medium-chirp-thru-hull-transducer","provider":"NVN Marine","version":"1.0","type":"link"}