Airmar B117 200/50kHz Bronze Thru-Hull Transducer010-10182-21Connect our bronze thru-hull mount transducer to your patible device to receive depth and temperature data. This transducer has an operating frequency of 200 and 50 kHz; a beamwidth of 12 degrees at 200 kHz 45 degrees at 50 kHz; and a 0 to 8 degree deadrise. Product : GARMIN BRONZE TH W/ DEPTH TEMP DF 0-8 DEGREE B117 Manufacturer : GARMIN PARTS Manufacturer Part No : 010-10182-01 UPC : 753759074326