Spec:

Item Type: Ground Resistance Tester
Material: ABS
Ground Resistance Measurement Range: 0.1Ω-9.990/±(2.0%+10), 0.0Ω-99.90/±(2.0%+3), 0Ω-/±(2.0%+3)
Display: 2000 Counts LCD with White Backlight
Working Temperature and Humidity: 0-40℃, ≤85%RH (Non Condensing)
Storage Temperature and Humidity: -20°℃-60℃, ≤90%RH (Non Condensing)
Accuracy Assured Temperature And Humidity: 23±5℃, ≤75%RH (Non Condensing)
Operating Conditions: Indoor, Outdoor (Not ) Altitude 0-2000m
Battery Type: 1.5V (LR6) Battery x 8 (Not Included)
Low Battery Power: Displays Low Power Symbol
Auto Power Off: Defaults to approximately 15 minutes of inactivity.

Package List:
1 x Ground Resistance Tester
5 x Test Leads
2 x Auxiliary Grounding Rods
1 x Strap
1 x Carrying Box/Cover
1 x Manual

How To Use:
1. Before measurement, sure the range switch is set to the appropriate position.
2. After use, please turn off the device and remove the test leads.