Live Zinc Oxide Arrester Clamp Tester also known as live MOA tester, used for testing the leakage current of the zinc oxide arrester below 35kV circuit line to judge whether the performance of the arrester is deteriorating. 1. Model No.: ETCR9400 2. Test Mode: Clamp CT 3. Measurement Range: AC 0.00mA~ 300mA (True RMS) 4. Communication Mode: 433Hz wireless communication 5. Communication Distance: 30m 6. Power Supply: Master: DC 7.4V 2000mAh rechargeable battery, full charge about 8.4VDetector: DC 7.4V 2600mAh rechargeable battery, full charge about 8.4V