Features Automatic Calibration: This infrared electronic ruler has an automatic calibration feature that automatically calibrates the rangefinder before use to provide the user with maximum reliability and accuracy, greatly reducing errors in applications. HD Backlight Screen: This infrared measurement tool adopts a large HD backlight screen, the use of the dark environment is not affected by the use of the backlight display function at any time. Wide Application: This infrared distance meter has a wide range of applications and can be used in building construction, engineering surveying, gardening, town planning, housing acceptance and water and electricity construction and other industries. Excellent ABS Material: This portable digital measure tool is made of excellent ABS material, which is strong and abrasion resistant, not easy to be damaged, and has a long service life. Compact And Portable: This electronic distance measurement tool is compact in size and light in weight, which makes it very convenient and easy to carry around with you and use it. Specification: Item Type: Infrared Distance Meter Material: ABS Measurement Range: Approx. 0.05m-50m / 0.16ft-164.04ft Measurement Accuracy: Approx. ±2mm / 0.08in Display Accuracy: Approx. 1mm / 0.04in Area, Volume Measurement: Supported Voice Broadcast: Supported Proof Level: IP54 Operating Environment: 0°C-+40°C Storage Environment: -10°C-+50°C Battery: L-Ion x 1 (300mAh) (Included) Application: Widely Used in Construction, Engineering Measurement, Gardens, City Planning, House Acceptance and Hydropower Construction Industries How to Use: Take out the infrared distance meter for direct use. PackageList: 1 x Infrared Distance Meter 1 x Carrying Bag 1 x Manual 1 x USB Cable Package List 1 x Infrared Distance Meter 1 x Carrying Bag 1 x Manual 1 x USB Cable