Garmin GT21-TH 8-Pin Thru-Hull Transducer

This Garmin transducer is perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVu scanning sonar with a stainless steel stem. The thru-hull mount boat transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of the structure below the boat.

The CHIRP ClearVu element has a power rating of 500W and operating frequencies of 260/455 kHz. In addition, the traditional sonar has a power rating of 600W and operating frequencies of 50/200 kHz. It includes a built-in fast response temperature sensor.

G21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions.

Technical Specifications:

Transducer Frequency: Traditional 50/200; ClearVü CHIRP 260 kHz (245-275 kHz) & 455 kHz (445-465 kHz).
Transducer Power: Traditional 600 W; ClearVü 500 W.
Transducer Beamwidth: Traditional: 40°/10° / ClearVü: 2.0°x51° @ 260 kHz and 1.4°x29° @ 455 kHz.
Transducer Maximum Depth: Traditional: 1,500 ft.; ClearVü: 1,000 ft.
Transducer Cable Length: 30 ft.
Transducer Depth/Speed/Temperature: Depth and Temperature.
Transducer Number Of Pins: 8-pin.
Transducer Supported Deadrise/Transom Angles: Up to 25° deadrise.