Garmin GT51M-TH w/ Temp Brand New Includes One Year Warranty Product # 010-01966-10 The Garmin 010-01966-10 is a stainless steel thru-hull transducer which provides ultra-clear sonar pictures of objects, structure and fish that pass below the boat. The Traditional CHIRP sonar and CHIRP DownV transducer is optimized for clearer images at shallower depths. The CHIRP DownV / SideV elements have a power rating of 500 W per element and operating frequencies of 260/455 kHz. The traditional CHIRP sonar has a power rating of 600 W and operating frequencies of mid-band CHIRP 80-160 kHz. 010-01966-10 Features Stainless Steel Thru-Hull Transducer 12-pin Provides Temp Data CHIRP DownV Operating Frequency 260/455 kHz Traditional CHIRP Operating Frequency 80/160 kHz Provides Ultra-Clear Sonar Pictures of Objects, Structure Fish Built In Temperature Sensor Includes 12-Pin Transducer w/ Stainless Steel Stems Fairing Blocks Isolation Plate Bushings Mounting Hardware Installation Instructions