Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVü 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.

GT21-TM includes an 8-pin transducer with mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.

Traditional Sonar: 600W , 1500ft maximum depth

CHIRP Sonar: 500W, 1000ft maximum depth

Integrated Temperature sensor

Designed for sportfishermen, cruisers, sailors and sailing racers who demand high performance, ease of operation and feature integration in a chartplotter/sonar combo. The 12" multi-touch widescreen GPSMAP 7612xsv combo includes built-in dual CHIRP sonar plus CHIRP ClearVü and CHIRP SideVü scanning sonar with the clearest images on the water. Its internal 10 Hz GPS updates your position and heading 10 times per second.

The built-in sonar capabilities of this 9" button-interface echoMAP 92sv, include CHIRP sonar, the most sophisticated sonar technology available for the fishing and boating public. CHIRP sonar provides amazingly clear target separation and definition because it puts even more energy onto the target than traditional sonar. It also includes sonar-recording capability that coordinates the timing of the sonar return with your boat's position and saves digital information for playback on a computer using HomePort planning software.