Review on NETPLAYZ Speed Radar Video Record Sensor by Michael Powell

It doesn't measure under 25mph and you need to find a specific angle to measure ball speed so it doesn't catch a ball but only a few around it. Of course, if you throw a ball close to the radar, part of it should hit right, and the cheap plastic will snap on the first hit. Not worth the money at all. Had to be removed from the gym after a week of use as everything was cracked and no longer safe for children.