... grounding, anti-static grounding, earth electrode/wire/device/network tests, also adapt to ground resistance tests ... ) in power generation, substation, transmission, distribution and building electrical equipments. FEATURES: Fulfilling different kinds ... offPower supply ways: dry batteries, rechargeable batteries and external power sourceSPECIFICATIONS:FunctionF1627KitAccuracy3-pole & 4-pole0.1Ω- ...