

Unique Setting Page
you can set the display you like, and set the Screen Off time, Brightness and so on

Multiple Port
there is a USB-C inpot and Micro USB port, you can use this 2 port to test the resistance of a cable, for testing current, jus use USB-A in and USB-A out to check the voltage and current

Protection Film
Our USB meter has protection film, maybe it fits the panel so well that you can not see it, but it does exist!

Work together with USB Load HD35
For our USB meter, it can work together with our USB load HD35, you can use HD35 to use certain voltage and current to discharge the charger/power bank, and view data on the USB meter to check the performance of charger/power bank, you can search "HD35" in our store to order it

you can check the D+ and D- voltage at the identification page, we use this to judge the fast charge protocol, it can judge QC2.0/QC3.0 Apple2.4A/2.1A/1A/0.5A, Android DCP, SAMSUNG protocol, and you can see you can rotate the display direction to get better experience.

UM34C is the communication version, it has APP control, you can check the data on the software and control it, UM34 is none communication version, it does not have APP control.

Use it in the right way
please use the USB meter in the right way, USB-A to USB-A. the structure of them are different, of course it cannot work fron USB-C to USB-A port

suitable for many devices
this USB meter can work together with many kinds of devices like charger, electric load, power bank..... you can view the charging voltage and current clearly
Product Model:UM34/UM34C
Display screen:1.44 Inch color LCD display
Voltage measurement range:4-24.00V
Current measurement range:0-4.000A
Capacity accumulation range:0-99999mAh
Voltage measurement accuracy:±(0.2%+1 digit)
Energy accumulation range:0-99999mWh-999.99Wh
Current measurement accuracy:±(0.8% +3digits)
Load impedance range:0.8O-9999.9O
Time measurement range:0-99h59min59s
Screen brightness setting:0-5 levels
Refresh rate:2Hz


Unique Setting Page
you can set the display you like, and set the Screen Off time, Brightness and so on

Multiple Port
there is a USB-C inpot and Micro USB port, you can use this 2 port to test the resistance of a cable, for testing current, jus use USB-A in and USB-A out to check the voltage and current

Protection Film
Our USB meter has protection film, maybe it fits the panel so well that you can not see it, but it does exist!

Work together with USB Load HD35
For our USB meter, it can work together with our USB load HD35, you can use HD35 to use certain voltage and current to discharge the charger/power bank, and view data on the USB meter to check the performance of charger/power bank, you can search "HD35" in our store to order it

you can check the D+ and D- voltage at the identification page, we use this to judge the fast charge protocol, it can judge QC2.0/QC3.0 Apple2.4A/2.1A/1A/0.5A, Android DCP, SAMSUNG protocol, and you can see you can rotate the display direction to get better experience.

UM34C is the communication version, it has APP control, you can check the data on the software and control it, UM34 is none communication version, it does not have APP control.

Use it in the right way
please use the USB meter in the right way, USB-A to USB-A. the structure of them are different, of course it cannot work fron USB-C to USB-A port

suitable for many devices
this USB meter can work together with many kinds of devices like charger, electric load, power bank..... you can view the charging voltage and current clearly
Product Model:UM34/UM34C
Display screen:1.44 Inch color LCD display
Voltage measurement range:4-24.00V
Current measurement range:0-4.000A
Capacity accumulation range:0-99999mAh
Voltage measurement accuracy:±(0.2%+1 digit)
Energy accumulation range:0-99999mWh-999.99Wh
Current measurement accuracy:±(0.8% +3digits)
Load impedance range:0.8O-9999.9O
Time measurement range:0-99h59min59s
Screen brightness setting:0-5 levels
Refresh rate:2Hz















