Garmin 010-10193-01 Thru Hull Fish Finder Transducer
Product Description
200/50KHz, 12/45deg, bronze, thru-hull mount/long stem w/depth, temp and speed, incl. fairing.
Bronze thru-hull mount long stem transducer with fairing block. Provides depth, temp and speed
data. Operating frequency of 200 and 50 kHz. Beamwidth of 12 degrees at 200 kHz, 45 degrees
at 50 kHz. Transducer kit comes with installation instructions. Please follow these instructions
carefully to ensure proper operation.  
works with:

GSD 20
GSD™ 21
GSD™ 22
Works with the following fish finders:
Fishfinder 400C
Fishfinder 100 Blue
Fishfinder 160 Blue
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 540/540s
GPSMAP 541/541s
GPSMAP 545/545s
GPSMAP 188/188C Sounder
GPSMAP 198C Sounder
GPSMAP 235 Sounder
GPSMAP 238 Sounder
GPSMAP 178 Sounder
GPSMAP 178C Sounder
GPSMAP 398C Sounder
GPSMAP 498 Sounder
GPSMAP 298 Sounder