Different models of grounding resistance testers have different measurement ranges, commonly ranging from a few tenths of an ohm to several thousand ohms. For example, some basic models may have a measurement range of 0.01Ω - 2000Ω, while high-end models may have an even wider range to meet the measurement needs of different scenarios. In terms of accuracy, high-quality grounding resistance testers can achieve high accuracy levels, such as 0.05%, meaning that the error range of the measurement results is very small, providing users with reliable measurement data.
