Garmin GXM 51 XM Satellite Receiver -
This sleek, watertight satellite receiver/antenna blends easy plug-and-play installation with NMEA 2000 network connectivity, delivering U.S. graphical weather data directly to your compatible Garmin chartplotter. It can be powered directly through the NMEA 2000 bus, eliminating the need for a separate power connection and with its integrated all-in-one design there’s no remote black box to install. Installs on the underside of many fiberglass decks using the included mount. Provides more than 20 different types of weather information including NEXRAD, lightning, wave heights, water temperatures, wind data and more.