Digital Grounding Resistance Tester Meters 2 3 Wire Digital Earth Resistance Tester with Range 0.00ohm to 2000ohm Earth Voltage Range 0 to 600V Lithium Battery 400 Groups Mass Storage
Digital Ground Resistance Tester Measuring Method:Earth ground resistance: rated current change-pole method, measurement current 3mA Max,820Hz; Earth Voltage: average value rectification