Scan mode

Most of the rangefinders already have this feature, which is indispensable when observing a moving target and instantly determining its distance. The measurement button needs to be held down and the distance measurements are being constantly updated. This is also a very helpful feature when measuring a target at longer range, so you can be absolutely sure that you measure the desired target and not some surrounding because with just once pressing the button, it is much more likely to get errors in measurements. With the scan mode errors like these can be quickly and easily eliminated.