1. This accurate rangefinder can be used for family, building, industry, residence, warehouse, etc. 2. It uses energy-saving and eco-friendly li-ion battery as power supply, and can measure distance for 2000 times after fully charged. 3. The measuring device provides you with 3 different units, including meter, inch and foot, from which you can choose the appropriate unit for rapid measurement. 4. Multi-core processor and optical lens combination ensure significantly increased efficiency of measuring house, significantly reducing the workload. 5. High definition back light, clear. Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Description: Material: ABS Measuring range: About 0.16 feet / 0.05 meters - 131 feet / 40 (60)meters Measurement accuracy: About 2 mm / 0.08 in Measurement mode: Area/volume/Pythagoras theorem/continuous measurement Measurement units: Meter/foot/inch (do not need to change unit every time, it will keep the final setting.) Self calibration: Yes Battery: 200 mah li-ion battery, can measure distance for 2000 times, charging only takes half an hour. Buzz indication: Yes Storage temperature: -25~60 Operating temperature: 0~40 IP rating: IP54 Color: Black Package Included: 1x Ultrared Rays Distance Meter 1x USB Cable