Attach the Garmin temperature probe to your boat transducer and the temperature sensor will let your fish finder / depth sounder display show you the temperature of the water at the surface.
Compatible fish finders and echo sounders for this temperature probe are: Fishfinder 100, Fishfinder 100 Blue, Fishfinder 160, Fishfinder 160 Blue, Fishfinder 160C, Fishfinder 240, Fishfinder 240 Blue, Fishfinder 250, Fishfinder 250C, Fishfinder 300C, Fishfinder 320C, Fishfinder 340C, GPS 125Sounder, GPSMAP135 Sounder, GPSMAP168 Sounder, GPSMAP178 Sounder, GPSMAP178C Sounder, GPSMAP185 Sounder, GPSMAP188/188C Sounder, GPSMAP198C Sounder, GPSMAP235 Sounder, GPSMAP238 Sounder, GPSMAP298 Sounder, GPSMAP398 Sounder, GPSMAP420/420s, GPSMAP430/430s, GPSMAP431s, GPSMAP440/440s, GPSMAP441s, GPSMAP498 Sounder, GPSMAP520/520s, GPSMAP525/525s, GPSMAP530/530s, GPSMAP531s, GPSMAP535/535s, GPSMAP536s, GPSMAP540/540s, GPSMAP541s, GPSMAP545/545s, GSD21, GSD22.
Garmin Temperature Probe / Sensor SKU#: 14926