Power Type : Battery-PoweredCertification : NONEModel Number : Handheld laser range finderSize : Diastimeter MeasureMeasurement Accuracy : 1.5mmlaser rangefinder : laser measuredistance measurer : lazer distance meterlaser ruler : electronic measurement instrumentsconstruction tools : laser tape measureLaser Distance Meter : laser measureWaterproof : yesContinuous measure : yesMini Laser Rangefinder Laser Distance Meter laser range finder tape distance measurer build measure 30M 40M 60M 100M 40%offFeatures:Digital laser distance measuring device 30M 40M 60M 100M -- Ideal measurements for rooms, apartments, buildings, real estates, factories, warehouses.Multiple Features Make Your Job Easier and More EfficiencySafety instruction:Instrument application*Indoor distance measurement*Area and volume calculateDisenable*Use the instrument without reading this manual*Use the instrument outside the scope of specified application*Destroy the security system,take off or dangerous signs*Open the meter by tools(such as a screwdriver)*Update or change the instrument*Use the accessories which not evaluated by our company,or other company accessories*On the scaffolding,climb ladders,use the instrument near the measuring idling machine or close to the no protection facilities equipment,or irresponsible action*Direct aim at the sun*Shake or shine the others on the dark place deliberately*measured on the place without safety facilities(such as on the road etc.)Second grade laser product:Don't look straight into the laser beam;don't aim for others in the case of unnecessary.Eyes will instinctively turn by visual or blink action to take self-preservation.Option 1Specifications reference:Measure rang(baffle board not include)0.05-30m Measure accuracy3mmMeasure unitm/inch/ft Measure time:0.1-3secondsLaser levelClass II Laser Type630-650nm,