Item Specifics Measurement accuracy: 3mm Measuring range: 131/328ft (0.03-40/100m) Mini display unit: 1mm Laser type: 635nm Laser power:1mw Data storage: 20PCS Battery type: 2 pcs 1.5V AAA battery(not included) Dust proof grade: IP54 Working temperature: 32~104 (0~40) Storage temperature: -4~140 (-20~60) Automatic shut-down of laser: 15 seconds Automatic shut-down of device: 45 seconds Size:118*54*27mm/115*52*26mm Scope of application: Engineering decoration and interior decoration Material: ABS + Silica Gel Measuring function: Distance measurement(Single measurement/Continuous Measuring), Area Measuring, Volume Measuring, Indirect measurement with pythagorean theorem. Features: Instant measurement of distance, area & volume with one button operation: YES Wide measuring range: YES Automatic calculation of Area and Volume: YES Indirect measurement by Pythagorean Theorem: YES Single/Continous measurement: YES Max/Min distance tracking (display value): YES Easy Addition/ Subtraction of measurement: YES Set up front / rear benchmark: YES Selectable meter(m), inch(in) and feet(ft): YES Data store/ recall function: YES Data Hold / Data clear function: YES Air Bubble Level: YES, Included Easy targeting with bright laser pointer: YES IP54 protection (dust & splash proof): YES Auto / Manual power off function: YES Compact & handy design: YES Package Including: 1 x Laser Distance Meter Warming Tips: Computer monitors display colors quite differently,the color of the article may vary slightly from the pictures above. Please allow 1-2cm differences because of the manual measurement. The images are for reference only. please take the item you get as the standard.