USB Charger Doctor

USB Charger Doctor can measure power line in USB bus to test USB-powered devices
Easy to use and way more practical, convenient and safer than regular multi-meter.
Compact and easy to carry, no additional power supply or batteries. Plug and play.
It can easily measure the output voltage of the USB port and the device operating voltage and current output
Detect any USB charger such as PC USB, home charger, car charger.
Wide range of applications, any phone or disk, your Arduino or any electronic product.
Suitable for factories, laboratories and personal use.
Voltage: 3.5V-7.0V error 0.1V
Current: 0A-3A error 0.01A
Size: 52mm x 33mm x14mm(approx)
Color: Blue