Specification:
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
Ground Voltage Measurement: Average response
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)
Grounding Voltage Gear: 400V AC (30s)
Insulation Resistance: The insulation resistance between the measuring circuit and the 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

How to Use:
1. Hit the P and the grounding nails into the depths of the ground. They are arranged in a row with the equipment to be tested, and they are separated from each other by 5 to 10 meters.
2. This method is to use an exposed low ground