The Rangefinder can be widely used in construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, etc.Specifications:1The maximum measuring range:40M.50M.60M.2Measuring accuracy: 2mm3Laser class: Class 24Laser type:630-670nm,<1mW5Auto laser off: 20 seconds6Auto instrument off: 150 seconds7Storage temperature: -20-60 degree8Operating temperature: 0-40 degree9Area, Volume Measurement: Yes10Indirect Pythagorean theorem: Yes11Min./max./value: Yes12Auto calibration functionyes13Storage humidity20%-80% RH14Battery: 3.7V 850mAh lithium battery15Minimum display unit:0.001m16Charge and discharge times: 500 times17Charging specification: DC 5V500mA Type-C USB interface18Full power work times8000times19Screen: Segmented LCD20Size: 100.3*33.4*18.3mm21Shell material: aluminum alloyInclude package:1x laserrangefinderx user manual1x Portable bag1x Charging cable