I needed a chrono that was small, light, and compact...easily transportable, and easy to carry. A buddy of mine from another forum (who had one, and used it for a number of years) suggested the Prochrono Digital.....under 100.00, so I though, for the price I wouldnt be getting much, but, it was worth a shot. It is nothing fancy, but gives all the stats, and has playback features, and after two years of rough, constant use, has performed beyond what I expected...not one problem! A number of years ago I used a commercial Oehler that we had at our club (very nice, but very expensive), and had some loaded ammuntion that was run through the Oehler. I took some of that ammo, with "known" velocities supplied by the Oehler and ran it through the Prochrono.....all the shots were within 2 fps of the readings I got with the Oehler!!!! I have a light tripod for the Prochrono...can take it anywhere, and it sets up fast...perfect for what I do. I do a lot of down range velocity testing, and the best thing about this chrono is, if it is hit by an out of control bullet, I havent lost much! The Prochrono is tough, light, and easily replacable, and best of all the investment is small.