Fangrui Product Details 1. Live Zero And Live Wire Judgment And Wiring Detection: In Live Mode, Zero And Live Wire Are Distinguished, And The Installation Wiring Is Clear At A Glance. The Live Wire Alarms, And The Zero Wire Has No Response. 2. The Large Flip Screen Can Be Adapted To The Situation: 180 Adjustment Of The Appropriate Angle Measurement, Convenient To Carry And Place At Work. 3. Ncv Non-contact Voltage Detection: Switch To The Ncv Function To Display Ef. When The Ac Voltage Is Detected By The Ncv Sensing Part At The Bottom Left Of The Meter, The Meter Emit A Buzzer Alarm And The Lcd Simulation Bar Display The Sensing Intensity. 4. Usb Lithium Battery Direct Charging Plug And Play: Built-in 3.7v/1800mah Lithium Battery, Connecting Type-cusb Lithium Battery Direct Charging Is Convenient And Fast. 5. Wide Range Of Application Scenarios: Multi-scenario Use, Engineering Operations, Mechanical Maintenance Can Be Easily Handled. Automatically Select The Measurement Range Full Range Overload Protection The Maximum Allowab