At the same time online monitoring and recording 1 ~ 3 channelAC leakage current and current, used for circuit insulation fault troubleshooting, monitoring intermittent leakage fault, check the happen time of insulation fault and maintenance lines, etc. 1. Model No.: ETCR8300/ETCR8300A 2. CT Size: 25mmX30mm/ 35mmX40mm 3. Current Range : 0.00mA ~20A/0mA~500A 4. Resolution: AC 0.01mA/ AC 1mA 5. Current Clamps Quantity: 1 - 3PCS (optional); 6. Power Supply : Rechargeable lithium battery DC3.7V,2600mAh