Garmin GT23M-TH Thru-Hull Mount Transducer. 30 foot cable, 8-Pin. Depth and Temperature. Perfect for coastal and offshore fishermen who want CHIRP traditional sonar and CHIRP ClearVu scanning sonar with a stainless steel stem. Consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat. For installation, follow the included instructions carefully to avoid damaging your boat.

Power: CHIRP Traditional 600 W; ClearVu 500 W
Frequency: CHIRP Mid-band (80-160 kHz); ClearVu CHIRP 260 kHz (245-275 kHz) & 455 kHz (445-465 kHz)
Maximum Depth: Traditional: 1,800 feet; ClearVu: 1,000 feet.
Number of Pins: 8
Beamwidth: Traditional: 24 - 13 degrees, ClearVu: 2 - 51 degrees @ 260 kHz, 1.4 - 29 degrees @ 455 kHz
Transom Angle: Up to 25 degree deadrise