High precision laser range finder can be used to measure distance, area and volume. It can also be used for the Pythagorean theorem of indirect measurement. Product measurements are portable, reliable, make your measurement more accurate, simple and fast. Instrument can be widely used in construction industry, especially in the large area, such as rooms, apartments, construction, real estate, factories, etc. features Mini digital laser rangefinder high precision, wide measurement range. Fast measuring distance, area, volume, through the Pythagorean theorem of indirect measurement. A single measurement and continuous measurement. Bubble level is set to the mental tools. Simple and bright laser pointer position. Maximum/minimum value measurement. Measurement benchmark is adjustable. Simple addition and subtraction. 20 sets of data records and memory functions. Design, small and hand-held portable and convenient. Large backlit display. Buzzer instructions.