Garmin Bronze Thru-Hull Mount Transducer w/Depth & Temperature B265LM. This transducer has a depth of 3000 ft; an operating frequency of 42 to 65 kHz and 85 to 135 kHz; a beamwidth of 16 to 25 degrees and 11 to 16 degrees; and a 0 to 20 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. Compatible Devices: GSD 26 CHIRP Professional Sonar Module Specifications for Garmin B265LM Bronze Thru-Hull Mount Transducer w/Depth & Temperature: Manufacturer: Garmin Color: Bronze Frequency Band: 65 kHz Cable Length: 39 ft Hull Type: Thru-Hull Features of Garmin B265LM Bronze Thru-Hull Mount Transducer w/Depth & Temperature Cable Length (Feet): 39' Chirp: Low/Medium Fairing Block Included: No Frequency: CHIRP Low (42-65 kHz) & CHIRP Mid (85-135 kHz) Imagining: Standard Mounting Style: Thru-Hull Pins: Bare Wire Power: 1 kW Speed Included: No Supported Deadrise/Transom Angles: 0 - 20 Temperature: Yes Package Contents: Garmin B265LM Bronze Thru-Hull Mount Transducer w/Depth & Temperature Garmin 010-11647-20: Bronze Thru-Hull Mount Transducer w/Depth & Temperature B265LM