Features:  1. The current clamp adopts magnetic shield and CT digital integration technology, with strong anti-interference, high accuracy and stable test.  2. The innovative automatic plug and pull structure makes the meter easy to clamp or withdraw the tested wire by pressing or pulling the insulation rod, saving time and convenient.  3. Peak hold, data hold and data memory function.               Technical Specifications:                      Model       ETCR9020B Wireless H/L Voltage Clamp Leakage Current Meter                 Measurement Range       AC  0.00mA~60.0A                 Max Resolution       1mA                 Test Accuracy       0.00mA~999mA:      ±1%±5dgt                   1.00A~60.0A:           ±1.5%±5dgt                   CT Size       48mm                 Meter Dimension       76mm×255mm×31mm Receiver:78mm×165mm×42mm                 Meter Weight       3630g (include insulation rod)                 Power Supply       6V DC(LR03×4pcs alkaline dry batteries)                 LCD Dimension       47mm×28.5mm                 Sampling Rate       2 times/s                 Communication Mode       Wireless transmission, straight distance 30m (only for ETCR9020B)                 PEAK Hold       Automatically hold the highest test value (only for ETCR9020)                 Data Hold       In usual test mode, press HOLD key to keep data, "HOLD" symbol display                 Data Storage       99 groups , stored process display MEM symbol, "FULL" symbol display indicate that storage full                 Data Access       "MR" symbol indication, can access all storage data                 Overflow Display       Exceed measure range overflow function: "OL  A" symbol display                 Automatic Shut Down       15 minutes after boot up, the meter shuts down automatically without any operation, to reduce battery consumption                 Battery Voltage       When battery voltage is lower than 4.