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
Garmin Heavy Duty Transom Mount with Spray Shield
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