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
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