The P39-235 transom mount smart sensor will provide digital depth(numbers only) and temp readings to your existing NMEA 2000 network. This smart sensor operates at 235khz so that it will not interfere with 200khz fishfinders and will also operate at depths up to 200'. The P39 is compatible with Garmin, Northstar, Raymarine, Lowrance, Simrad and Furuno.