Manufacturer: Humminbird 730021-1
Item: 5-5024241
UPC: 082324506895
Optional speed sensor for Humminbird fishfinders. Provides quick response to changes, reads from 2 to 70 MPH for speed. Transom mount, 20 foot cable included.
For Use With: Matrix 10, Matrix 10 Portable, Matrix 10 Track Pack, Matrix 15, Matrix 15 Plus, Matrix 17, Matrix 20, Matrix 20 Portable, Matrix 20 Track Pack, Matrix 25, Matrix 25 Plus, Matrix 27, Matrix 35, Matrix 35 Plus, Matrix 37, Matrix 55, Matrix 65, Matrix 67, Matrix 97, Fishfinder 515, Fishfinder 535, Fishfinder 565, Matrix 47 3D, Matrix 77C, Matrix 87C, FF585C, FF595C, 931C, 937C, 947C, 981C, 987C.