Garmin Airmar B275LHW 12pin 1kW CHIRP Thru hull w/Fairing Bronze. This CHIRP transducer has a constant 25degrees beam width provides increased coverage under the boat. Designed for boats 25 and above with fiberglass or wood hulls. Specifications for Garmin Airmar B275LHW: Manufacturer: Garmin Length: 12 m Color: Bronze Additional Features: 12 pins Features of Garmin Airmar B275LHW General Frequency:Low (42 - 65 kHz); High (150 - 250 kHz) Power:1kW Maximum depth:3000 ft Depth/Speed/Temperature:Depth and Temperature Number of pins:12-pin Cable length:12 meters Supported deadrise/Transom angles:19-25 degrees Package Contents: Garmin Airmar B275LHW Garmin 010-12183-20: Airmar B275LHW 12pin 1kW CHIRP Thru hull w/Fairing Bronze