Description Feature: 1. Laser ranging, with high measurement accuracy, small error, it can be accurate to millimeters, measurement without contact, simple and efficient 2. Complete functions, support digital storage, unit selection, measured temperature, low battery display, buzzer display, data display 3. LCD large screen display, clear imaging effect is good, support data storage, convenient for reading and recording 4. Made of high quality ABS material, light weight, convenient to carry, streamlined design, comfortable hand feeling 5. Widely used in site survey and construction, it is a good helper for workers and improves work efficiency Specification: Item Type: RangefinderModel: UA40M Material: ABS Power Supply: 2 x 1.5V AAA(battery not included) Purpose: distance measurement. Range 0.05m~40m Accuracy 2.0mm Distance Unit m,ft,in Area Unit ,ft2,flat Laser Type 620~690nm Laser Class Level II,