GT5105A 2000Ω Digital Earth Resistance Tester Ground Resistance Meter Ohm Meter for Earth Resistivity Item Type: Earth Resistance Tester Material: ABS+Alloy Steel Color: As shown in the picture Model: GT5105A Battery: 1.5V AAx6 (not included) Application: Ground resistance measurement Grounding Resistance Measurement: Test signal frequency: about 820Hz, current: 20Ω about 3.2mA Working Temperature: 5~40℃ Relative Humidity: ≤80%RH (no fog) Altitude: ≤2000m Storage Conditions: Temperature: -20~60℃; humidity: ≤70%RH (no fog) Grounding Resistance Gear: 200V AC (10s) Insulation Resistance: The insulation resistance between the measuring circuit and the shell is not less than 20MΩ Basic Function Range Accuracy Resolution Ground Resistance 20Ω ±(2%+10) 0.01Ω 200Ω ±(2%+3) 0.1Ω 2000Ω ±(2%+3) 1Ω 2000Ω (two wires) ±(2%+5) 1Ω Ground Voltage 200V ±(2%+5) 0.1V