Garmin 010-12087-01 GT20-TM Transom Mount DownVu Transducer with Temperature Sensor (8-Pin) All-in-one 8-pin transducer Get ultra-clear pictures of objects, structure, and fish that pass below your boat 20' transducer cable with temperature sensor Transom angle 0-70 Power rating of 500 W; a depth of 1,900 ft. (traditional) and 750 ft. (DownVu); an operating frequency of 77/200 kHz (traditional) and 455 (DownVu)