Keweisi USB Multimeter Charger Detector – KWS-V21

Easy to measure the output current and voltage of a USB power supply

With the multimeter you could know the charging status of your phone or tablet and distinguish bad chargers and cables

With the time and capacity storage, you could also measure the total capacity in mAh

Compatible with QC 2.0

Only for USB 2.0

No battery required, plug and play

Specifications:

Voltage: DC 3.5-20V±1%

Current: DC 0-3.3A±1%

Capacity: 0-99999mAh

Time: 0-99H (Unit: minute)

Package included:

1 x KWS-V21 USB Multimeter Charger Detector USB Tester