High Precision Surveying Instrument Al3-2 Digital Level Accuracy 0.7mm
Models and technical parametersAL3-2-1.5AL3-2-0.7Standard deviation for 1km double-run levelingElectronic reading1.5mm0.7mmOptics reading21Electronic reading systemMeasurement distance2.0m-105mSingle measurement time<2'Minimum of light intensity20LuxDisplayMinimum distance display value1mmMinimum elevation display value0.1mmTelescopeMangnification28X Objective aperture40mmShortest sighting distance0.5mCompensationRange15Accuracy0.5Time2'Data and interfaceInterfaceRS232Storage2000 datePowerBattery4XAA battery and chargerContinuous working time10 hoursWorking time24 hoursOthersWater proofIP55Working temperture -20ºC~+50ºCWeight<2.5kgAngle measurement360°