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Garmin GT21-TH

Garmin GT21-TH

Part Number 010-01962-10

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Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVü scanning sonar with a stainless steel stem, this thru-hull mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat.

The CHIRP ClearVü element has a power rating of 500 W and operating frequencies of 260/455 kHz. The traditional sonar has a power rating of 600 W and operating frequencies of 50/200 kHz. It includes a built-in fast-response temperature sensor.  For hull deadrises less than 25 degrees.

GT21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.

General

Transducer frequencyTraditional 50/200; ClearVü CHIRP 260 kHz (245-275 kHz) & 455 kHz (445-465 kHz)
Transducer powerTraditional 600 W; ClearVü 500 W
Transducer beamwidthTraditional: 40°/10°
ClearVü: 2.0°x51° @ 260 kHz and 1.4°x29° @ 455 kHz
Transducer maximum depthTraditional: 1,500 ft.; ClearVü: 1,000 ft.
Transducer cable length30 ft.
Transducer depth/speed/temperatureDepth and Temperature
Transducer number of pins8-pin
Transducer supported deadrise/transom anglesUp to 25° deadrise

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