I think i'll go pick one up! I was concerned that the read out wouldn't be too accurate but sounds like you've had success with it. I figure when i'm in my float tube this will help me eliminate unproductive water, plus the portablity of it is a plus. I read that after the battery on the transducer dies you had to replace the whole unit but you said you replaced the battery on yours. When you did this, didn't that break the seal on the transducer and cause water to seep in the transducer? Thanks for your reply, it's been very helpful. Once I get the unit and try it out, I'll post my results.