They are a sealed unit and you run it down and reel it back up to go through the data that it collects.
tks – sounds like it may be worth looking into…
at Strawberry today, this shows the blow black using a 10lb flat Pancake Downrigger Weight also look at the speed
Probe Depth: 40.0 F Down rigger ball down
Probe Speed: 1.4 MPH
Probe Temp: 52.3 °F
Time: 6:47 AM
Notes: GPS speed 1.3 surface temperature 66.8 downrigger counter 42 feet
Species:
Probe Depth: 45.0 F
Probe Speed: 1.0 MPH
Probe Temp: 51.2 °F
Time: 7:56 AM
Lat:
Notes: GPS speed 1.3 surface temperature 66.8 downrigger counter 47 feet
Species:
Probe Depth: 62.0 F
Probe Speed: 1.0 MPH
Probe Temp: 46.7 °F
Time: 8:12 AM
Lat:
Notes: surface temperature 67.1 downrigger counter 65ft GPS speed 1.3 miles per
hour
Species:
Probe Depth: 41.0 F
Probe Speed: 1.6 MPH
Probe Temp: 51.6 °F
Time: 8:16 AM
Lat:
Notes: surface temperature 67.1 downrigger counter 45ft GPS speed 1.3 miles per
hour
Species:
Probe Depth: 36.0 F
Probe Speed: 1.2 MPH
Probe Temp: 54.1 °F
Time: 9:11 AM
Lat:
Notes: , surface temperature 67.7 downrigger counter 38 feet GPS 1.6 miles per
hour
PM being sent…tks…
KokaneeTackle.com has the Fish Hawk for $139.95 with no tax and free shipping. I’ve bought two from them. Very easy to use and worth the cost. (The first one I bought is at the bottom of SC. They don’t float).