A through-hull transducer is an electronic device mounted within the hull to collect speed, depth, water temperature and other data, and to transmit it to the craft's main electronics console.
These instruments are intended primarily for use on leisure craft of any size with a rigid hull.
Transducers can be plastic, bronze or stainless steel. A hole is drilled through the craft's hull while it is out of water. A watertight cylinder is inserted into the hole and capped. Once the boat is back in the water, the transducer is mounted in the cylinder such that its outboard end is in contact with the water.
Such devices gather data relative to speed, water temperature, depth and other parameters, depending on model. Graphic depth sounder transducers with multi-beam and multi-frequency capability can measure great depths and wide swaths of the seabed. Some models use ultrasound technology, while others measure speed via a mechanical device that spins as the boat moves through the water.
The transducer should be the same diameter as the hole in the hull. Its materials must be compatible with those of the hull. Do not use a metal transducer on an aluminum boat.
Some transducers are only compatible with electronics consoles made by the same manufacturer. Specify console brand and model to the retailer. NMEA hubs are sometimes required. Ultrasound transducers have no moving parts, making them more reliable and durable, and less subject to fouling than mechanical models.
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Depth transducer for boat (thru-hull) T42 Raymarine
Key Features Measures temperature as low as 0.2º F....
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Speed transducer for boats (thru-hull) ULTRASONIC Nexus
The ultrasonic speed sensor makes cutting edge, high technology speed sensing affordable. Instead of a paddlewheel, it uses two transducers...
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Depth - temperature transducer for boat (thru-hull, bronz, stem) B258 Simrad Yachting
B258 Depth/Temperature Transducer The B258 is a bronze, 1kW RMS, thru-hull, 50/200 kHz depth and temperature...
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Depth - temperature transducer for boat (thru-hull, plastic) XFM 9 20 Humminbird
Plastic Flush Mount Thru the Hull Transducer Dual...
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Speed transducer for boats (thru-hull) B & G
The Paddle-Wheel Speed Sensor is designed for both cruising and racing yachts and...
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Depth - speed - temperature transducer for boat (thru-hull) AIRMAR DST800 Garmin
Our plastic smart thru-hull mount transducer provides depth, speed and temperature data to your...
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Speed - temperature transducer for boat (thru-hull) 90-60-457 NKE
This sensor is positioned outside the boundary...
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Depth - speed - temperature transducer for boat (thru-hull, NMEA 2000®) DST110 Maretron
DST100 - NMEA 2000® Depth / Speed / Temperature Transducer Maretron’s DST100 Smart™ Retractable Depth/Speed/Temperature Transducer, delivers precise digital depth, accurate speed and exact water temperature even at speeds above 40 knots—all with no programming or calibration necessary. Its patented Smart™ Sensor technology, retractable and removable...
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Depth - temperature transducer for boat (thru-hull, bronze) B265 Airmar
Imagine knowing what exact frequencies work the best at detecting specific fish species: Bluefin Tuna—60 kHz, Squid—133 kHz, and Cod—175 kHz. Now imagine tuning your fishfinder to these frequencies, marking the fish precisely on the screen, then catching them! With the...
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Depth - temperature transducer for boat (thru-hull) NMEA 0183 Cruzpro
The CruzPro DSP (Digital Signal Processing) active transducers output NMEA 0183 serial data of depth and water temperature. Numerous models suit most applications requiring...
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Depth transducer for boat (thru-hull) #710300 Tecnautic
The depth transducer comes with a through...
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Speed transducer for boats (thru-hull) ETN200T 50 KHZ SKIPPER Electronics AS
- 50 kHz Navigational Transducer -...
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Depth - speed - temperature transducer for boat (thru-hull) Continental Trading
Easy detachment Shielded piezoceramic...
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E/M Sensor Blind Alize. The Electromagnetic Blind Alize...
