Description: 【Accurate and Reliable】: The digital earth resistance tester is controlled by an intelligent chip, which can measure ground resistance and ground voltage, ensuring measurement accuracy and reliability. There are 2 measurement modes: 2 pole and 3 pole modes. 【Wide Applications】: The ground voltage tester is suitable for various grounding measurements, including distribution lines, indoor wiring and electrical equipment. 【Backlight LCD Display】: The grounding resistance meter features a large LCD backlight display screen, and the readings are clear and easy to see. It measures the maximum value, minimum value, and average value, and has a relative measurement function and automatic shutdown function. 【Data storage】: The ground resistance tester can store 100 sets of measurement data, and the data is not easy to lose during a power failure, which is convenient for historical data queries. 【Portable Size】: The handheld portable insulation resistance detector is simple to operate and easy to carry, meeting various measurement scenarios. Specification: Product size: 18.6cmx6.8cmx14cm/7.32inchx2.68inchx5.51inch Material: ABS material Power supply: 8x AA batteries (not included) Package Includes: 1 Earth Resistance Tester 1 Storage Bag 1 Red Test Line (15m) 1 Green Test Line (10m) 1 Black Test Line (5m)