Mercu USB 2.0 Multi Tester Digital Multimeter Ammeter Voltmeter Capacitance & Watt Meter , DC 3A 12V Amp Voltage Power Meter Charging System Tester, Fast Charging and Data Sync Dual USB Port

Price: $7.49
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Product Features

Display: Simultaneously displaying of Amp and Volt in real-time Measuring Range: Voltage 4-20V Current 0-3A Accuracy: +/- 1% Dual ouput: Output one is used for both charging and data transfer, Output two is for large current fast charging Widely used: Perfect for testing how fast a USB cable or USB power charger, such as power bank, solar charger LCD display, easy to look at the current and voltage of the device