0.1Ω to 1999Ω 0V to 1000V Ground Resistance Meter High Accuracy LCD Backlit Earth Resistance Tester Item Type: Ground Resistance Meter Material: ABS Grounding Measurement Range: 0.10 to 19.990, ±(2.0%+10) 0.0Ω to 199.90, ±(2.0%+3) 0Ω to 1999Ω, ±(2.0%+3) Numbers: 2000 counts display with white backlit Operating Temperature And Humidity Range: 0 to 40℃, relative humidity ≤85% (no condensation) Storage Temperature And Humidity Range: -20℃ to 60 ℃, relative humidity below 90% (no condensation) Accuracy GuaranteeD Temperature And Humidity Range: 23±5℃, relative humidity below 75% (no condensation) Use Of Environmental Conditions: Indoor, outdoor use (not waterproof), altitude 0 to 2000 meters Overrange Indication: Ground Resistance: >1999Ω, 999Ω Battery Type: 1.5V (LR6) Alkaline battery x 8 [Shipped without battery] Low Battery: Displays the low battery indicator Automatic Shutdown: No operation for about 15 minutes by default