This is a portable mini current voltage detector. You can use it to measure current and voltage of the power supply equipment with USB port conveniently.

Features of Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter:

• High quality, small sized, easy and convenient to carry.
• It can measure current and voltage of the power supply equipment with USB port.
• The voltage and current will be displayed circularly.
• Plug and Play, no extra power supply needed.

Applications of Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter:

• Usb overload prevention.
• Active USB peripheral power consumption monitoring.