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This Garmin GT50M-TH thru-hull transducer provides ultra-clear sonar pictures of objects, structures, and fish that pass below your boat. The traditional CHIRP sonar and CHIRP DownVü/SideVü transducer is optimized for clearer images at shallower depths. The CHIRP DownVü/ SideVü elements have a power rating of 500W per element (1,500W total) and operating frequencies of 455/800 kHz. The traditional CHIRP sonar has a power rating of 300W and operating frequencies of mid-band CHIRP 80-160 kHz. Features a built-in, fast-response temperature sensor. For hull deadrises up to 5°. Maximum depth of 1,500'. GT50M-TH includes a 12-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware, and installation instructions.