To Whom It May Concern, current bug with the Range Finder. Range Finder was in Prestine condition and battery was about 80% full and in worn condition. The range finder would now produce a distance or angle. Instead it would only show all zeros and the angle would keep jumping from 0 degrees to 90 degrees and back to zero. I tried removing and reinstalling the battery, as well as dropping the range finder and picking it back up. This issue has popped up several times recently.