Features: 1.100% Brand new high quality 2.LCD with Backlight 3.Your distance measurer transmits ultrasonic waves to a point you want to measure 4.Auto OFF: switches off if you do not press any key for about 1 min 5.It measures the time taken by the waves to reflect and then calculates and re-transcribes the distance 6.Level function(one vertical level bubble one horizontal level bubble) 7.Package Weight: about 70g. Specification: Measure distance from 0.5m to 18m Accuracy +-0.5% +-1cm Resolution 1cm or 2\1 inch Units of Measure : Feet/Meters Package Included: 1 x Ultrasonic distance measurer (Battery is not included) 1 x English User Manual