includes: GSD 21, marine CANet/power cable, power/datacable, cable grommet, CANet cable, CANet terminators, CANet hardware and installation instructions.
The GSD 21 black box option is the way to go for adding sonar capabilities to any GPSMAP 276C, 172/172C, 182/182C, 192C, 292/392/492, 2006/2010 series, 2206/2210, and the 3000/3200 series. The GSD 21 add-on will produce 500 watts at 50/200khz serving for excellent results in shallow and deep water applications up to 1500ft. With Garmins See-Thru® technology, you will then be able to seperate fish from underwater structures and even water temperature changes.
The GSD-21 comes with a variety of display options, which include: 3 fish symbol sizes, adjustment bar,auto ranging and even 2x, 4x auto and manual zooming. Coming equipped with Garmin's proprietary Depth Control Gain (DCG®) allow's the GSD-21 to automatically adjust it's sensitivity to the current depth. System alarms include: 3 size fish, low battery, shallow and deep water.
Easy installation, waterproof to ipx-7 standards, variety of transducer options and comes standard with a 30 ft cable and mounting kit. Transducer sold seperately.
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