This product is either discontinued or we cannot get that from suppliers.
Garmin 010-11105-00 Airmar DT800 (20 Degree Tilt), Frequency: 235 kHz, Power Rating: 100W, Beamwidth: 12°, Maximum Depth Capacity: 600 ft., Number of Pins: NMEA 2000 compatible, Cable Length: NMEA 2000 compatible, Supported Deadrise/Transom Angles: 16° to 24° deadrise angles.
Garmin's plastic smart thru-hull mount transducer provides depth and temperature data to your NMEA 2000 network.