Garmin’s GT21-TM is an 8 pin transom mount ClearVu CHIRP and traditional sounder transducer, that when paired with a compatible Garmin fishfinder provides some of the most sophisticated sonar technology available today. The CHIRP/ClearVu has a power rating of 500 Watts and operating frequencies of 260/455 which will provide ultra-clear sonar images of structure, objects and fish that pass under your boat. The traditional sonar portion of the GT21-TM has 600 Watts of power at operating frequencies of 50/200 which provide images at greater depths. The GT21-TM also includes a built in fast response temperature sensor. Mounting hardware and installation instructions are included with the GT21-TM. A caution though is to follow the instructions carefully to avoid damaging your boat.
*Compatible with Garmin echoMap 4xdv, 5xdv,73dv,7xsv,94sv, GPSMAP 7x1xs, GPSMAP 820xs/840xs and GPSMAP 1020xs/1040xs, GPSMAP 7600xsv series and GSD25.
*Adapter Cable may be required depending on unit transducer is paired with.
*Cable Length: 30ft
*ClearVu CHIRP Frequency Range - 260kHz = 245-275 and 455kHz =445-465
Replaces 010-12219-00 (GAX12219).
Product Accessories for Garmin GT21-TM Transom Mount Transducer
PropSpeed's FoulFree Transducer Coating Kit is the biggest advancement in transducer paint and coatings in the last 30 years. It will keep your thru-hull or transom mount transducer free of marine growth. This nontoxic formula has zero leaching of harmful chemicals into water unlike traditional anti-fouling bottom paints and is certified by Airmar.
Garmin Spray Shield for DownVu/SideVu Transducers
Garmin Heavy Duty Transom Mount with Spray Shield