Ergonomic exterior, comfortable handling Max/Min/continuous measurement, data storage functions Auto power off and auto laser off to conserve battery Millimeter accuracy 99 groups data storage Quick, self calculation with real-time readout Physical leveler(Horizontal and vertical) Specifications Product size 122mm x 52mm x 29.5mm Continuous Measurement Yes Display Type LCD Display size 2.0-inches Accuracy "(2mm+5 x 10-5D) Range 100m Certifications RoHS Measurement Units m/ft/in Laser Color Red Min display unit 0.001m Measurement Basis front/rear Single measurement Yes Max/Min/Area Yes Volume Yes Pythagoras Yes Add/Subtract Yes Self calibration Yes Horizontal bubble Yes Power 1.5V battery (LR03) x 2 Storage temperature -20"C to 60"C Operating temperature 0 to 40"C Data Storage 99 groups Laser class 2 Laser type 630 - 670nm, < 1mW