Garmins GT50M-TH Stainless Steel Thru-Hull Transducer features traditional CHIRP, DownV and SideV that have been optimized for crystal-clear images at shallower depths. 455/800kHz operating frequencies in CHIRP DownV and SideV at 500 watts each for 1,500 total watts. Traditional CHIRP operates at 300 watts with the midband at 80-160kHz, raising one ping at a time. Fast-response temperature sensor built in. For hull dead rises less than 5. Includes GT50M-TH transducer, mounting hardware and instruction manual. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Transducers.