... ETCR3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digital and micro-processing ... environment, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, ... Dimension: LWH:215mm×190mm×95mm 12.Testing Wires: Three wires: each for Red 20m, Yellow 10m, and Green 5m 13. ...