Features: 100% high quality! This is a mini USB meter. It can measure voltage, current, power and capacity. Simultaneous display of voltage and current data, easy to view. Can detect a variety of power supply output voltage and current. Durable and safety. Small size and lightweight, easy to carry. Calculating the capacity and efficiency of mobile phone battery power bank.
Specifications: Model:KWS-V21 Voltage:4-20V Current:0-3A Color:Bright blue Size:73*23*13.5mm
I am very impressed, I cant find anything yet to complain about. actually I regret I did not order 2 units (improves the delivery cost per unit) and hope the performance stays this way, and does not degrade. Really love this. Now I can monitor what comes out of various branded and non branded chargers and helps explain excellent & poor charging, especially with brands like apple and unique devices that refuse to respond to charging except you use the unit that came with the product. Also very handy for monitoring current drains of project devices.
17-12-2018by Tagbo
Verified Purchase
USB Detector Voltmeter Ammeter Power Capacity Tester Meter Voltage Current
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