Product Description

The UPM can be used to measure the output performance of any USB charging adapters, PC USB,

Car USB chargers & Power banks etc. It can also be used to diagnose faulty USB ports, evaluate

the quality of USB cables & the capacity of portable power source.

Product Feature

Low power MCU with 10bit ADC

25x15mm segment LCD shows clear and accurate numerical readings

6 modes allows the user to measure real-time Voltage,Current,Watt,Capacity,Total capacity & Time

Very low current sensing resistor for less voltage drop

Over-voltage protection & alarm(Max 5.7V)

Over-load protection(Max.3A)

Self-closedown function to avoid the device is over charged.

Product Specification / Models

Working voltage range: 4.5~5.7V DC

Working current range: 0~3A

Voltage precision:+/-0.5% , Resolution:0.01V

Current precision:+/-1% , Resolution:0.01A

Standby current: 20mA

Size & weight: 43x25x11mm, 15g

Application / Models

How to use

1. Connect the UPM into the host machine (Home USB charging adapter, Car USB charger,

PC USB port, portable power bank,etc.)

If the input voltage is out of the range of 4.5~5.7V DC, the UPM will alarm "BeBe" & voltage

value will blink

2. When the UPM is ready for use it will turn on blue LED, beep once & display the USB voltage(V)

3. Connect a target device to the UPM. The UPM will beep once again, then the Initial mode voltage(V) will be replaced with current(A)

4. The 6 modes of the UPM can be changed by pressing the button to cycle as follows.

5. The current will be cutted automatically when the device is full charged or unpluged.

UPM alarms "Be..Be..Be", blue LED goes out, and "End" is displayed.

Press the button to clear "End" & switch on the current.

6. Self-closedown function & End Level setting

UPM detect the full charging according to End Level(EL). Pls set the EL according to different devices.

If the current is cutted automatically & device is not full charged, Pls adjust the EL value bigger.

Hold the button 3 seconds to enter the setting. Quick press the button to cycle through the value(10, 20, 30, 40, 60, OFF). Default value is 30.

Save & exit with beep if no action within 5 seconds.

OFF - Close the function.

Matek Systems Limited

Matek USB Power Meter / Monitor, Power bank Tester

Related to this item

Contact Information

Products from this seller