Garmin Sonar Transom Mount GT23M-TM - 010-12404-00Garmin Sonar Transom Mount GT23M TM 010 12404 00 GT23M TM transducer is perfect for coastal and offshore anglers who want CHIRP traditional sonar and CHIRP ClearV scanning sonar. This transom mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat. The 8 pin transducer features mid band CHIRP traditional sonar (80 160 kHz) and has a power rating of 600