2ohm/20ohm/200ohm AR4105A Portable Resistance Tester Meter Digital Earth Groun
Product model: AR4105A. Error: soil 3% RDG + 0.1 Ω. Error: soil 3%rdg. Gears can be selected. Grounding resistance Grounding resistance: 200V AC (10 seconds). There is no automatic shutdown function for 10 minutes, which is more durable.