Easy to use
The Spectra Precision® QM20 Laser Distance Meter is compact, fitting comfortably in your hands and in your pocket or tool belt. Simply press a button to take a measurement - simple to operate and easy to use. The measuring range is 165 feet (50 m) and functions include indirect measurements using the Pythagorean mode. Area and volume calculations are also possible.
It is handy for difficult vertical measurements, cluttered environments, over water and other measurements for which tape measures are not convenient.