Garmin GT30-TH SS Thru-Hull DownVu/SideVu Scanning Transducer w/Temp f/Hull Deadrises Less Than 5 [010-01961-10]Garmin GT30 TH Stainless Steel Thru hull DownV SideV 500W (CHIRP 455 800 kHz) Scanning Transducer with Temp, for Hull Deadrises Less Than 5 (12 pin) Get ultra clear sonar pictures of objects, structure and fish that pass below and to the side of your boat with this 12 pin thru hull transducer with stainless steel stem. This transducer with built in fast response temperature sensor has a power rating of 500 W per element (1,500 W total); a depth of 750