Features: IP54 protection (dust & splash proof): √ Auto/ Manual power off function: √ Multifunction with intelligent calculation: √ Compact & handy design: √ Min measurement: √ Max measurement: √ Area measurement: √ Volume measurement: √ Add / subtraction:√ Measuring time: m / in / ft Specifications: Measuring range: 0.3 to 40m Acurracy: 3mm Laser class: Class II Laser maximum output: