Xcessor USB Power Meter - Voltage Tester - Current Monitor for USB 2.0, 3.0. Volt and Amp Reader. Portable Two Port USB Hub to Check Mains Charger and Other USB Equipment. DC 3.2 - 10V, 0 - 3A. Grey / Semitransparent Portable, compact, light and easy to use USB two port output detector to gauge current voltages and amperage on all the USB ports, chargers, cable and cords. Also easy to measure out no-load voltage. Shows both voltage and ampers at the same time - no need to wait 10 seconds for the display to change as with alternative products. The charger tester plugs in between your USB host and USB guest and will show output voltage and power draw (amps) in LED display. Suitable for factories, laboratories and personal use. This is high quality product distributed only by Accessory Department. Accessory Department is the owner of all intellectual property rights in this listing and in the material published on it. Xcessor (TM) is trademark of Accessory Department. It is protected by corresponding copyright laws and treaties. All rights are reserved.