ModelJaws sizeResistance rangeCurrent rangeData uploadAlarmData saveETCR2000ALong type 65x32mm0.01Ω-200ΩxxxxETCR20000.01Ω-1000ΩxxxxETCR2000C0.01Ω-1000Ω0.00mA-20.0Ax√√ETCR2000A+0.01Ω-200Ωxx/√√√ETCR2000+0.01Ω-1200Ωxx/√√√ETCR2000B+0.01Ω-1200Ωxx/√√√ETCR2000C+0.01Ω-1200Ω0.00mA-20.0Ax/√√√ETCR2000E+0.01Ω-1200Ω0.00mA-40.0A√√√ETCR2100ARound type ∮32mm0.01Ω-200ΩxxxxETCR21000.01Ω-1000ΩxxxxETCR2100C0.01Ω-1000Ω0.00mA-20.0Ax√√ETCR2100A+0.01Ω-200Ωxx/√√√ETCR2100+0.01Ω-1200Ωxx/√√√ETCR2100C+0.01Ω-1200Ω0.00mA-20.0Ax/√√√ETCR2100E+0.01Ω-1200Ω0.00mA-40.0A√√√FunctionGround resistance test, contact resistance testResistance accuracy max±1%±0.01ΩCurrent accuracy max±2.5%±1mAPower Supply6VDC 4 PCS of AA Alkaline batteries*Alarm Threshold Setting Range*Resistance: 1-199Ω * C type onlyAlarm Sound and Light"Beep-beep-beep" alarm tone, Alarm Symbol Flashing, Press AL key to turn on, turn off Alarm or set Alarm Threshold.Interference Signal Recognition"Beep-beep-beep" tone, NOISE symbol blinkingWorking Temperature and Humidity-20°c-55°c; 20%RH-90%RHLCD Screen4 Digits LCD display, Screen L*W: 47mm*28.5mmClamp Opening Extent32mmTester Weight< 2KGProtection LevelDual InsulationStructural FeatureClamp CTrange ShiftingAutomatic shiftingExternal magnetic field<40A/mExternal electrical field<1V/mSingle measurement time<1 secondResistance measurement frequency>1KHzMeasured current frequency50/60Hz Automatic measurementLow Battery IndicationLow battery symbol displays when battery is lower then 5.3VMemory Full IndicationMEM symbol blinks when all 99 sets memory is fullOver Range IndicationOut of range indication "OLΩ", "L0.01" or "OL A"Auto Power-off5 minutes after Boot upPower ConsumptionMax 50mA either in booting up or normally working, Continuously working for 30 hoursRS232 Interface (Optional)The data stored in the meter are uploaded to the computer through RS232 interface and data wire, Then generate report filesAccessoriesMeter: 1 piece, Test ring: 1 Piece, Meter Suitcase: 1 Piece, Manual 1 Copy