Feature: 1. VC4105A Ground Resistance Tester: HD LCD screen with 2000 counts display, clear white backlit, no parallax, unit symbol display, suitable for nighttime or dark environments. 2. Digital Resistance Meter: Multiple gear selections for resistance measurement, capable of measuring ground voltage (0V to 1000V) and photovoltaic voltage (0V to ±1500V). 3. Power Supply Options: Can be powered by batteries(without) or external power adapter, ensuring continuous power supply without worrying about low battery levels. 4. Compact and Durable Design: Equipped with a neck strap for convenient dual hand operation, user friendly interface, this resistance meter is suitable for on site transportation and harsh environments. 5. 5 Test Cables: There are 5 test cables for the resistance tester that can be used for different situations, you can use them at will Specification: 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 . Package List: 1 x Grounding Resistance Tester 5 x Test Wires 2 x Auxiliary Grounding Rods 1 x Strap 1 x Storage Bag 1 x User Manual