After years and years of using handhelds I strongly recommend that you buy new. By the time somebody wants to sell a used handheld there is probably something wrong with it. If not, that person will probably hang on to it as a backup. You can get a decent rechargeable handheld for a little over $100 that will serve you well for many years. I also recommend that you get one that floats. I have personal experience on that. Expensive personal experience.