digital distance laser meter 1,Continuous Measurement,Pythagoras Measurement, Plane Area Measurement, Volum 2,simple us digital distance laser meterPD-56 Technical Data Measuring ... Measurement,Pythagoras Measurement,Plane Area Measurement,Volume MeasurementAvailableAddition/SubtractionAvailableBattery life (Type AAA, 2×1.5V)Up to 5000 MeasurementsDimension & Weight118mm x ...