Garmin GT30-TH SS Thru-Hull DownVü/SideVü Scanning Transducer w/Temp f/Hull Deadrises Less Than 5°Meet the Garmin GT30 TH SS Thru Hull DownV SideV Scanning Transducer with Temp for Hull Deadrises Less Than 5. A stainless steel thru hull solution that captures ultra clear DownV and SideV sonar images of structures, fish and other objects passing beneath and to the sides of your boat. Power and clarity 500 W per element (1,500 W total) with CHIRP 455 800 kHz for crisp, detailed scanning imagery. Depth performance DownV depth up to 750 ft; SideV