USB Tester Digital DC Current Voltage Detector Power Bank Charger Indicator + USB Load

Features: Voltage measuring range: 3.33V ~ 33.0 V Resolution precision: 0.01 V Current measuring range: 0.00 ~ 5.00 A Resolution precision: 0.01 A Power cumulative range: 0 ~ 999999 MWH Resolution precision: 0.001 Wh Cumulative capacity range: 0-99999 mah Precision: 0.001 Ah(New features) Power metering range: 0 ~ 299.999 W Resolution precision: 0.001 W Timing maximum time: 999 H 59 M 59 S Resolution precision: 1 S Time to refresh: > 500 ms/time > 500 ms/times Measurement rate: 0.5 times/s USES the large-scale instrument of the same metal manganese copper low impedance sampling resistance is almost zero (1.5 mm diameter metal manganese bronze material