The Raymarine B60-12 600w, Bronze Low Profile ThruHull Transducer has quickly become the transducer of choice. It has the same performance as the standard Thru-Hull with Fearing block style but does not cause interference with water flow or create trailering issues thanks to its low profile design. Also availble for boats with deadrise between 8 and 16 degrees. Operating Frequency: 50/200 khz with temp. Compatible with Raymarine DSM30/DSM300/CP300/CP370.