Here is my history with radar. For comparison's sake, we knew what the kid's Stalker reading was.
Two years ago, I bought a Glove Radar. It read about 10mph low. The store I bought it from made an immediate exchange - even let us try out the new one in the parking lot - and it was right on. We have used this tool to this day and it continues to give good readings as long as the ball comes in to the catcher's mitt on a fairly straight track.
One year ago, I bought a Bushnell Speedster. It has never worked properly and was all but impossible to get a basic reading with even though we were following all of the proscribed guidelines. Has been collecting dust in a closet - even our high school science teachers don't want it.
Yesterday, received the brand new SpeedTrac unit (formerly SpeedChek). Highly touted online. Went and tried it out. Once again, a POS product. The highest reading obtained (and obtained repeatedly) was 54mph. No rose-colored dreaming here -- my son has been gunned with Stalker and is fully 25mph faster than that. He hasn't thrown 54 since Bronco League. Fiddled with the batteries, double-checked everything, was throwing right over the unit, etc etc -- still, 54 is the highest we could ever get it to read.........notified the company we bought it from that it's being returned for a refund.
Now - after wasting all this time and money, I'm finally going to spring for a Stalker. I wouldn't, but we're starting a year-round "academy" over here and will get a lot of use out of it.
For those considering buying an inexpensive radar, think carefully. You may end up with a product that just doesn't cut it. Save for the better unit. Just my opinion based on my Quixotic experiences with radar.
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