• Easy to measure the output current and voltage of a USB power supply

• Work time and power capacity display with memory function

• Can be very easy to find digital devices charging problem

• With Reset key, press 3 - 5 seconds, the screen will be cleared

• No battery, no on/off switch, plug and play

• Real time monitoring, safe and reliable

• Only for USB 2.0

• Compatible with QC 2.0

Specification:

• Input voltage display: 4 - 20V

• Charge current display: 0 - 3A

• Battery capacity display: 0 - 99999mAh

• Working time display: 0 - 99H (Unit: min)

• Current resolution: 0.01A

• Voltage resolution: 0.01V

• Accuracy: ±1%

• Size: 59 x 23 x 13.5mm

• Weight: 20g

Compatible with:

• Smartphones, tablets, laptops, power banks etc. devices