Garmin Accessory XdcrAirmar R109LM 2kW CHIRP External Mount w/Fairing. This CHIRP transducer enables bottom detection down to 10000' and resolution so precise it's possible to distinguish between individual baitfish game fish and underwater structures. Designed for boat 40' and above with fiberglass wood or metal hulls. Specifications for Garmin XdcrAirmar R109LM 2kW CHIRP External Mount w/Fairing: Manufacturer: Garmin Length: 12 m Color: Black Additional Features: Bare wires Size: 12 m Features of Garmin XdcrAirmar R109LM 2kW CHIRP External Mount w/Fairing General Frequency:Low (38 - 75 kHz); Mid (80 - 130 kHz) Power:2kW Beamwidth:Low: 10-5Mid: 13-18 Maximum depth:10000 ft. (3000 meters) Depth/Speed/Temperature:Depth and Temperature Number of pins:Bare wires Cable length:12 meters Supported deadrise/Transom angles:19-25 degrees Package Contents: Garmin XdcrAirmar R109LM 2kW CHIRP External Mount w/Fairing Garmin 010-12809-20: Accessory XdcrAirmar R109LM 2kW CHIRP External Mount w/Fairing