w ripley
Contributor
Just don't get too upset if everything doesn't work the first time you actually test it under water. I've had 2 friends try to do what you're doing and they each ended up buying a new one. I think a little more work and they would have had it. Good luck. You probably know by now that they are not as simple as they look.
BTW, how are you going to test it for depth?
BTW, how are you going to test it for depth?