Quick measurement of distance， area and volume with one button operation.Automatic calculation of area and volume.This product can be widely used in construction and industries， especially in large areas such as rooms， apartments， buildings， real estates， factories， warehouses， etc.Features:1. Brand new and high quality2.Convenient to use and carry3.High accuracy and wide measuring4.Quick measurement of distance5.Measure distance from 2 feet to 60 feet6.Multiplication��addition calculation7.Switchable among metre(m)，feet (ft)8.Data storage9.Large LCD with backlight10.Low battery indicationSpecifications:1.Working frequency��40KHz2. Measuring range: 2-60ft��0.55-18m��3.Accuracy: 0.5%+1 digit ��2-60ft��5.Operation Temperature: 0��C~43��C(32��F~109.4��F)6.Power��1*9V��not included��7.Product Size:150*58*27mmPackage Included��1*Laser Distance Meter1*User Manual(English)