Rebzar Norm E-40, (0.05 to 40 meters/ 131 ft) Laser Rangefinder/Distance Measuring Meter - Portable Measuring Device,Area/Volume/Distance/Pythagoras Calculation,Measurement Memory Recall ★ This Professional Distance Meter employs laser technology to measure distance, area, and volume accurately, quickly and conveniently. ★ It has a measuring range 40m (131ft) and particularly high accuracy ±2mm.★ In addition, this meter can make use of Pythagorean Theorem, measure distances or lengths indirectly when direct measurement is not feasible.★ This meter also has various functions including continuous measurement, addition/subtraction function and Max/Min measurement. Other main features are including99 data memories, switchable units (meter, inch &feet) & backlight LCD with the multi-line display.★ Laser distance meter has a wide variety of applications in construction and industries. It is very useful and convenient to give an accurate measurement of distance, area, and volume especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses, gardens, roads, infrastructures, etc.