You might want to rethink what is more important, you or your machine. True no one wants to loose there machine but as you said
things can get out of hand with no notice, if all that happens is you get knocked around but are able to recover them a leash might
not be such a bad idea but lets take it to a higher level. Instead of just getting slam dunked you find yourself in a rip tide! Now you
have a whole lot more to worry about than loosing your detector, and don't kid yourself it can ,has, and will happen again, to someone,
maybe you maybe not but +++++ . Anyone who hunts the surf when there are breaking waves, or an area that can form a rip ( in the
ocean or gulf this can happen at anytime or place ) them should wear a PFD ! This is the one I have and use but there are other's
out there that are more or less the same, that do not hamper your movements, weigh next to nothing and can save your life, but
only if you buy one and wear it. In a strong rip the last thing anyone needs is a leash on there detector to get tangled around there
legs or arms. Think about it ! I did, and if, push comes to shove, the crabs can have my detector if need be,