SW-70G 70m Handheld LCD Digital Green Beam Laser Distance Meter Rangefinder Distance Measuring Tool Condition: Item Type: Laser Distance Meter Material: Plastic Color: As shown in the picture Weight: Approx.253g/8.9oz Measurement range 0.05-70m (0.16 to 164ft) Accuracy ±(1.5mm +d x 5/100,000) Measurement unit m/in/ft Continuous measurement Yes Area measurement Yes Volume measurement Yes Angle measurement +/- 90 degree LCD display TFT color screen Add or subtract functions Yes Area, volume addition and subtraction function  Yes Maximum and minimum measurement function Yes Pythagorean triangulation function Yes Lofting measurement function Yes Timing measurement Yes Electronic horizontal bubble Yes Maximum measurement record 100 Units Laser class 500-535nm Class 2 Automatic calibration function Yes Automatic cut-off laser 20s Connect to computer USB connection with software, can output computer Auto power-off 150s Storage temperature -20℃-60℃ Operating temperature 0℃-40℃ Storage humidity 20%-80%RH Battery AAA 1.5Vx3(Not included) Full working time 8000 times Sound prompt Yes