Add depth to your Garmin chartplotters with the GSD 20-series remote sounders. The GSD 22, Garmin's first digital sonar, is a robust units designed to operate with stand-alone chartplotters or integrate with the Garmin CANet and Marine Networks. This powerful remote sounder plugs directly into the Garmin Marine Network for use with Garmin's network chartplotters or into the new Garmin CANet for use with the 392/492 series chartplotters. Ultrascroll technology keeps the display scrolling at live-action speeds, while the unit's digital design and up to 2 kW of transmit power (depending on transducer used) provide extraordinary target definition and deep water performance. Transmit power and receiver gain automatically adjusts to produce excellent shallow water performance as well. The GSD 22 is dual frequency (200/50 kHz) and works with everything from a standard 500-watt transom mount transducer to heavy-duty 2 kW thru-hull or in-hull transducers. Reaches depths down to 5,000'. One year warranty.