Garmin GT40 Transom Mount Transducer 010-01963-00 Brand New Includes One Year Warranty The Garmin 010-01963-00 is a transom mount transducer which provides ultra-clear sonar pictures of objects, structure and fish that pass below the boat. This transducer features CHIRP technology and CHIRP DownV for clear images at shallower depths. This 12-Pin transducer has a traditional CHIRP operating frequency of 77/200 kHz. It also includes a built-in fast response temperature sensor. 010-01963-00 Features Transom Mount Transducer Provides Depth Temp Data CHIRP DownV Operating Frequency 455/800 kHz Traditional CHIRP Operating Frequency 77/200 kHz Provides Accurate Readings Provides Ultra-Clear Sonar Pictures of Objects, Structure Fish Built In Temperature Sensor Includes 12-Pin Transducer Mounting Hardware Installation Instructions