Garmin Accessory Airmar TM265LH 12-pin Dual CHIRP 1kW Transom Mount. The best performing 1 kW transom mount this transducer has a maximum depth of 3000 feet; an operating frequency of 42 to 65 kHz and 130 to 210 kHz; a beamwidth of 16 to 25 degrees or 6 to 10 degrees; and mounts on a 3 to 21 degree transom. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. Specifications for Garmin Airmar TM265LH 12-pin Dual CHIRP 1kW Transom Mount: Manufacturer: Garmin Color: Black Additional Features: Beamwidth 16-25deg/6-10deg Features of Garmin Airmar TM265LH 12-pin Dual CHIRP 1kW Transom Mount Beamwidth:16-25/6-10 Package Contents: Garmin Airmar TM265LH 12-pin Dual CHIRP 1kW Transom Mount Garmin 010-12378-20: Accessory Airmar TM265LH 12-pin Dual CHIRP 1kW Transom Mount