It can measure the USB-powered devices empty and.
Easy to use and practical.
Compact and easy to carry, no additional power supply, plug and play.
It can easily measure the output voltage of the USB port and the device operating current or load voltage
Detect any USB charger such as PC USB, home charger, car charger.
Wide range of applications, any phone, any electronic product, Easy to use.
Suitable for factories, laboratories and personal use.
Voltage range: 4.5V-18V
Current range: 0-3A
Voltage display: red
Current display: blue
Size: 52mm x 22mm x14mm
Shell color: blue
1Pcs x Mini 5V Dual Digital Voltmeter Ammeter Red Blue USB Current Voltage Meter Tester Detector Mobile Phone Power Charger Doctor