Mini USB charger doctor voltage current tester.

Features:
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.

Specification:
Color: Blue
Detection range: Voltage: 3.5V-7.0V Current :0A-3A
Product size: 5.3 * 2 * 1.5cm / 2.1 * 0.8 * 0.6in
Product weight: Approx. 15g / 0.5oz
Package size: 5.3 * 2 * 1.5cm / 2.1 * 0.8 * 0.6in
Package weight: Approx. 15g / 0.5oz

Package List:
1 * USB Charger Tester