Feature:1. HD Backlight Screen: This distance measurement tool device adopts a large HD backlight screen, the use of the dark environment is not affected by the use of the backlight display at any time to turn on the backlight function.2. Automatic Calibration: This levels distance meter has an automatic calibration feature that automatically calibrates before use to provide the user with maximum reliability and accuracy, greatly reducing errors in the application.3. Wide Application: This levelling tool 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.4. Compact And Portable: This handheld distance measurement tool is small and lightweight, which makes it very convenient to carry around and use.5. Sturdy And Durable: This multifunctional measure distance ruler is made of excellent ABS and TPU material, which is sturdy and durable, not easy to be damaged, and has a long service life.Specification:Item Type: Levelling Tool Distance MeterMaterial: ABS, TPUModel: NF-271Range: Approx. 50m / Approx. 164ftMeasurement Modes: Single, Continuous, Area, Volume, PythagorasMeasurement Accuracy: ±2mmBattery: 3 x AAA Batteries (Not Included)LCD Screen: Backlit FSNTWavelength Output: 620-680nm, <1mwOperating Temperature: 0-40°CStorage Temperature: -20-60°CProof Level: IP54​.Package List:1 x Levelling Tool Distance Meter1 x Manual