Precise3/4-wire,simple 2-wire method to measure earth resistance, soil resistivity, earth voltage. 1. Model No.: ETCR3100C 2. 2/3/4-pole method measure earth resistance,Range: 0.00Ω~30.00kΩ 3. Soil resistivity measurement, Range: 0.00Ωm ~ 9000kΩm 4. Earth voltage measurement,Range: AC 0~600V 5. Data storage: 300 sets 6. Power Supply : DC 7.4V 2600mAh rechargeable lithium battery, full charge about DC 8.4V
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