DROK USB Tester, USB-A 2.0 Digital Multimeter Dual USB Output Ports PD QC 3.0 Color LED Display, 7 Modes Capacity Voltage Current Power Voltmeter Ammeter for Laptop Power Bank Solar Panel

The DROK USB Tester is a must-have tool for anyone who wants to ensure their mobile devices are charging properly.

With its 7 display modes, you can easily monitor voltage, current, power, and capacity.

The device also features dual USB output, allowing you to charge your device while monitoring its health.

Plus, it has over-voltage, under-voltage, over-current, and short-circuit alarms to keep your devices safe.

Whether you're using a solar panel, power bank, battery charger, or USB cable, this multimeter is the perfect tool for testing the health of your charging system.

Don't risk damaging your device - get the DROK USB Tester today!