Specifications:

    Measuring range: 0.2 to40m 

    Accuracy:±2mm 

    Laser class: Class II 

    Laser type: 635nm, <1mW

    Operating temperature: 0 ~ 40 °C (32 ~ 104 °F)

    Store temperature: -10 ~ 60 °C (-4 ~ 140 °F)

    Auto power off:after 480 secs

    Auto cut off laser: after 60 secs

    Battery life: up to 5000 times

 measurement mode:

single distance measure/ area measurement/volume measurement/continous measurement

unite:m/ft/inch