FEATURES: Precise distance measurement is guaranteed with the DW033 that?s accurate to ?3mm/m in distance calculation, With a range of 30m it?s ideal for quick, accurate measurements on-site, A lanyard loophole for attachment to lanyards and hand-loops help prevent accidental drops, Operation is easy with one button for both hold measurement and continuous measuring, It?s compact and lightweight for easy storage and uses a black display with white letters for ease of reading, An IP54 rating against water and dust ingress coupled with an over moulded TPE housing that protects the unit helps to maintain calibration under the toughest of jobsite conditions. SPECIFICATIONS: Working Range:30M, Accuracy at 10M:/-3, Bluetooth:No, Battery Type:AAA Battery, Battery Quantity:2, Battery Included:Yes