1Laser distance meter kit uses accurant laser technology to provide fast, simple and accurate measurements every time it is used. 2Handy tool is compact in size and provides length, area and volume measurements (inches, feet and metric units). 3Compact laser measurement tool measures and displays length, calculates and displays area. 4And displays continuously updated measurement values when moving to or away from the target. 5Very suitable for interior decoration, renovation, floor and wall covering, real estates estimation and appraisal, a fast, simple and accurate way of measuring, even at walking distance. Item Type: Infrared distance meter Options: 40-Meter / 60-Meter / 80-Meter /100-Meter(optional) Material: Plastic Measuring Range: 0.05-40-meter/60-meter/80-meter/100-meter (Optional) Measurement Accuracy: 1.5mm Laser Class: Class II Laser Type: 635nm, P1mW Measurement Datum: Front and rear datum Unit of Measurement: Meter/inch/ft Area Measurement: Yes Volume Measurement: Yes Pythagorean Theorem: Yes Continuous Measurement: Yes Addition and Subtraction: Yes Timing Measurement: 5~60S Battery: AAA R03P UM-4 1.5V dry battery Working Temperature: -5~40 Storage Temperature: -20~60 Size: Approx.50mm / 2in Approx.120mm / 4.7in Approx. 30mm / 1.2in 1 x Infrared Distance Meter1 x Portable Bag1 x Sling