Feature:1. Screen Flip Function: The USB voltmeter supports screen flip function, through gravity sensing, the screen can be flipped freely, or you can turn off the gravity direction recognition and long press the middle button to flip the screen.2. Differential Pressure Method Measurement: This USB voltmeter can measure cable resistance using the differential pressure method. Use with constant current load to easily detect cable resistance.3. Realtime Monitoring: One key to switch five or six digits display, maximum resolution 0.00001, can monitor the subtle changes of voltage, current and power during charging in realtime.4. Downward Compatible: With USB3.0 interface, 9 pin design, backward compatible with USB2.0. No need to use primary data cable, also can directly test the charging protocol of some phones.5. Measurement Data Recording: USB voltmeter can record 10 sets of measurement data, and you can use the obtained data to calculate the battery capacity. Add the calculation directly to this product, and the result multiplied by 1000 is the battery capacity.6. Easy Reading: USB voltmeter supports reading for E Marker and for DASH line data, you can easily read the chip of for E Marker and for DASH line after connecting the data cable.Specification:Item Type: USB Voltage MeterMaterial: ABSUse: Multifunctional rapid charging testerModel: FNB48Monitoring Voltage: 4 to 24VMonitoring Voltage Resolutions: 0.00001VMonitoring Voltage Accuracy: (0.2%+2)Monitoring Current: 0 to 6.5AMonitoring Current Resolution: 0.00001AMonitoring Current Accuracy: (0.5%+2) Monitoring Power: 0 to 156WMonitoring Current Resolution: 0.00001WMonitoring Current Accuracy: (0.5%+2)Load Equivalent International Resistance: 0 to 9999.9Load Equivalent International Resistance Resolution: 0.0001Load Equivalent International Resistance Accuracy: (0.5%+2)Capacity: 0 to 9999.99Ah Power Consumption: 0 to 9999.99WhCable Resistance: 0 to 9999.99D+ or D- Voltage: 0 to 3.3VD+ or D- Voltage Resolution: 0.001VD+ or D- Voltage Accuracy: (1.0%+2)Device Temperature: or Device Temperature Resolution: 1 or 1Device Temperature Accuracy: (1.2%+3) or (1.2%+4).Package List:1 x USB Voltage Meter