The USB power monitor can be used to measure the output performance of any USB charging adapters， PC USB， car USB chargers !#!amp!*! power banks etc. It can also be used to diagnose faulty USB ports， evaluate the quality of USB cables !#!amp!*! the capacity of portable power source.

Features:
Over-load protection (Max.3A)
Low power MCU with 10bit ADC
Over-voltage protection !#!amp!*! alarm (Max 5.7V)
Self-closedown function to avoid the devices is over charged
Very low current sensing resistor (10 Ω) for less voltage drop
25*15mm segment LCD shows LCD shows clear and accrate numerical readings
6 mades allows the user to measure real-time voltage， current， waltt， capacity， total capacity and time

Specifications:
Working current range: 0~3A
Working voltage range: 4.5~5.7V DC
Voltage precision: +/-0.5%， Resolution:0.01V
Current precision: +/-1%， Resolution:0.01A
Current sensing resistor: 10 mΩ
Standby current: 20mA
Size: 42.5 * 25 * 10mm
Weight: 15g

Package Information:
Package size: 10 * 6.5 * 1.5cm / 4 * 2.6 * 0.6in
Package weight: 20g / 0.7oz
Adehesive tape package

Package List:
1 * USB Power Monitor