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USB Charger Doctor dongle is to measure the working voltage and current output for any USB port or project. It can measure the current draw of USB-powered devices and is easy to use and practical. Compact and easy to carry, no additional power supply needed as it draws from the 5V port. It can easily measure the output voltage of the USB port and the device operating current or load voltage. Detect any 5V USB charger such as PC USB, home charger, car charger cell phone + tablets. Wide range of applications, any phone, any 5V electronic product. Now available here in a Clear case.
Easy to use! It flips between voltage and current readouts every 3 seconds or so. Detection range voltage: 3vdc-7vdc error 0.1v. Current :0-3A error 0.01A. It is a very handy tool for testing USB devices, checking load levels and debugging batteries.
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