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 a67/a77/a97/a127, e7/e97/e127, and c97/c127 units.