The driving range is set up with your cue, ball and golf laser rangefinder, by looking at the viewfinder ringing and finding your target, whether it is a sign, a bunker or other front edge that identifies a landmark. It is relatively easy to check. At this time, a reading is required. The rangefinder needs a very stable hand. To find the distance, please check if the rangefinder has the magnification capability and its correct use distance.
When everything is ready, you need to play a few balls first to test whether the golf laser rangefinder is working properly. If it does not work properly, then debug again. If it still does not work, you need to consider whether the rangefinder damage.