precision laser distance measurement 1.Display lighting 2.Measurement indoor or outdoor 3.Simple interface 4.Safe laser ... 6mm at 10m; 30mm at 40mAuto Power-off180sIlluminationAvailableContinuous Measurement,Pythagoras Measurement,Plane Area Measurement,Volume MeasurementAvailableAddition/SubtractionAvailableBattery life (Type AAA, 2× ... Storage)0°C~ 40°C (Operation) precision laser distance measurement