This accurate rangefinder can be used in home, construction, industry, residential, warehouse and more. It is powered by an energy-saving and environmentally friendly lithium battery, which allows you to measure distances 2000 times when fully . The measuring device provides you with 3 different units including meters, inches and feet, and you can choose the appropriate unit for a quick measurement. Measuring range: 40m/60m Measurement accuracy: ±2mm/±0.08in Measurement unit: m/in/ft Measurement time: 0.5 seconds Laser Class: Class II Laser type: 635nm Less than 1mw Waterproof and dustproof: IP54 Auto turn off backlight: 15 seconds Automatic shutdown: 480 seconds Measurement reference switching: yes Data Clear: yes Power display: yes Signal strength indication: yes Continuous measurement (max/min): yes Addition and subtraction (distance/area/volume): yes Area/Volume/Pythagorean volume function: yes Power supply: rechargeable lithium battery (200mAh) Operating temperature range: 0℃-40℃ Storage temperature range: -25℃-60℃ Product size: 100 x 32 x 12.6mm Colour:As Shown Material:ABS+Metal Package Contents: 1 * Laser distance meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.