TECHNICALDATAThefollowingelectricalspecificationsarevalidforoperatingtemperaturesof65 F(18 C)to82 F(28 C),atrelativehumidityupto90%foraltitudesupto2000m,unlessotherwisenoted.Pollutiondegree2,class3equipment.ResistanceRangesTestMeasurementOpenCircuitInternalFunctionRange*Voltage**ResistanceContinuity0to10M10V .7V50010VSurface105to101110V .7V2100VSurface105to1011100V .7V2*MeasurementAccuracy: 5% 2 ofarc.**Measuredinternallyatvoltagesource.BatteryTestInternaltestof100Vsource Accuracy: 2% 2 ofarcBatteries1 1.5VAACell1 22.5vType505(Eveready505)**(SeereplacementpartsaboveforbatteriesequivalenttotheEveready505.)PhysicalDataInstrumentTestWeights(2)4.6 (H)x3.3 (W)x1.8 (D)Weight:5lbs.(2.27Kg)each(11,7x8,4x4,6cm)Diameter:2.5 (6,4cm)Height:4.7 (11.9cm)Weight:12oz(340gms)(w/handleandpad)