Garmin 010-10279-01 Fish Finder Speed Sensor
Product Description:
Speed sensor calculates the speed of the water flowing past your transducer. Transducer kit
comes with mounting hardware and installation instructions
Works with the following fish finders:
Works with:

GSD™ 21
GSD™ 22
Fishfinder 160C
Fishfinder 300C
Fishfinder 400C
Fishfinder 100
Fishfinder 100 Blue
Fishfinder 160
Fishfinder 160 Blue
Fishfinder 240
Fishfinder 240 Blue
Fishfinder 250
Fishfinder 250C
Fishfinder 320C
Fishfinder 340C
GPSMAP 420/420s
GPSMAP 421/421s
GPSMAP 430/430s
GPSMAP 431/431s
GPSMAP 440/440s
GPSMAP 441/441s
GPSMAP 520/520s
GPSMAP 521/521s
GPSMAP 525/525s
GPSMAP 526/526s
GPSMAP 530/530s
GPSMAP 531/531s
GPSMAP 535/535s
GPSMAP 536/536s
GPSMAP 540/540s
GPSMAP 541/541s
GPSMAP 545/545s
GPSMAP 546/546s
GPSMAP 168 Sounder
GPSMAP 185 Sounder
GPSMAP 188/188C Sounder
GPSMAP 198C Sounder
GPSMAP 235 Sounder
GPSMAP 238 Sounder
GPSMAP 398C Sounder
GPSMAP 498 Sounder
GPSMAP 298 Sounder