Multiple Measure Modes: distance, area, volume, continuous measurement, addition and subtraction, Pythagorean mode. Max measuring distance extends to 131ft / 40m, Distancemeasurement precision +/-2mm. There are 6 Units of measurement for selection, include meter, inch and feet. Easy targeting with bright laser pointer, the laser distance measure makes field work easier and safer. Ideal for home, construction, industries, large areas such as rooms, apartments, buildings, real estates, factories, warehouses. Portable & lightweight. Non-slip rubber-like material around the edge assures a solid grip. Backlight for increased visibility in low-light conditions. Easy to use at any time.