Simultaneously 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.: ETCR8300F 2. CT Size: φ50mm~φ1500mm 3. Current Range : AC 0.00A~20.00kA 4. Resolution: AC 10mA 5. Current Clamps Quantity: 1 - 3PCS (optional); 6. Power Supply : Rechargeable lithium battery DC3.7V,2600mAh