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Universal measuring device in the form of a USB stick. Plug and play, no batteries required. It allows you to measure the current consumption, the voltage value of the connection. The meter has input and output: USB 2.0 socket. The tester will be useful for anyone who wants to quickly diagnose USB cables, chargers with a USB socket: mains or car chargers. Specification: - LCD screen with lighting, - voltage measurement DC 3 - 9V ±1%, - OL range overflow indication, - current measurement DC 0 - 3A ±1%, - capacity indicator: 0 - 9999mAh, - memory of 10 measurements for various devices, - compatible ports: USB 2.0, - dimensions 80x28x11mm, - gross weight: 0.03kg.