High precision: precision less than 2mm; 3 m / in / ft units and 2 reference points, faster and more precise than a tape measure. 5 measurement modes: single and continuous distances (min / max), area, volume , Pythagoras for height and triangular area. Durable tool: The product is made of high strength ABS plastic with waterproof and dustproof IP54 grade, widely used in home, construction and industries. Read clearly: backlit display and support data blanking function; Compact in size and lightweight, you can put it in your pocket after use. Color: Black Measuring range: 0.05-40 m Material: ABS Measurement time: 0.1 to 3 s Display: LCD with backlight Accuracy: 2 mm Unit of measure: m / in / ft Laser class: Class II Laser wavelength: 635 nm Laser output: lt; 1 mW Waterproof and dust protection rating: IP54 Automatic laser shutdown: 30 s Auto power off: 480 s Measurement reference switch: Yes Power supply: rechargeable lithium battery (200mAh) Operating temperature: 0 ~ 40 / 32 ~ 104 Storage temperature: -20 ~ 60 / -4 ~ 140 Product size: 100 * 32 * 12mm / 3.94 * 1.26 * 0.47in (L * W * H) Package size: 135 * 70 * 35mm / 5.31 * 2.76 * 1.38inch (L * W * H) Note: 1. The actual item color may be slightly different from the color due to the difference in display and lighting effects, shown in the picture. 2. Due to manual measurement, 0.5-1 "measuring deviation is allowed. packing list: 1 * range finder 1 * USB cable 1 * User manual (Chinese + English)