The laser distance meter is high precision and multi-functional laser measuring instrument that can be used to measure the distance, area and volume, and can also utilize the indirect measurement of pythagorean theorem. The laser range finder is portable and reliable in measuring, making your measurement more accurate, simple and faster, and getting twice the result with half the effort. Features: Multiple Measurement Modes: including single measurement, continuous measurement, area measurement, volume measurement, pythagorean measurement, level measurement, vertical measurement, addition & subtraction measurement. Benchmark Switching: you can set the benchmark to measure from the front side or from the rear side. Multiple Data Storage: can save up to 99 sets of data, you can easily review the history record of measurement. Rechargeable Distance Meter: inbuilt 3.7V 700mAh lithium battery to power up the meter, and has low battery indicator and 2 minutes auto-off function. Mini Size: measured size in 4.5* 2*1in, the distance meter is even small than your smart phone, just put it in your pocket to carry it around. Voice Broadcast Function: you don't need to look at the LCD display to check out the measured data after measuring, let you focus on the measuring job. Indoors and Outdoors Measurement: can be widely used in construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses, etc. Specifications: Range: 60m / 100m (Optional) Material: ABS Accuracy: 1.5mm Unit Switching: m/ft/in/ft+in LCD Screen: FSNT with backlight Wavelength & Output: 500~530nm, 1mW Laser Level: IIIa Auto-off: 2 minutes Data Storage: 99 sets Protection Level: IP54 Working Temperature: 0~40 Storage Temperature: -20~60 Battery: 3.7V, 700mAh lithium battery Item Size: 115 * 51 * 23mm / 4.53 * 2.01 * 0.91in Item Weight: 110g / 3.88oz Package Weight: 235g / 8.29oz Package Size: 18.5 * 9 * 4.2cm / 7.28 * 3.54 * 1.65in Packing List: 1 * Laser Distance Meter 1 * USB Cable 1 * Reflector Board (only for 100m range) 1 * Manual (English)