USB meter


Yet another USB Tester with PC/MAC connectivity. This time using Bluetooth.

PC Software

Application is old-shool and simple. It cannot resize to use full screen, cannot autodetect port to use, cannot show large graphs.

Graph export

not much graph export options available

UM24C iPad mini charge graph


  • Bluetooth PC Connectivity
  • MicroUSB
  • Large display


  • USB 2.0 (not USB 3.0)
  • no Type-C
  • TFT (not OLED)

Software and Manual:

UM24C back


3 replies on “UM24C”

I concur with everything you said except that there is mobile software available for android.

From AliExpressproduct link:
“2. PC software support PC window (Win 7 and above) and Phone Android (Android 5.0 and above, support 12 kinds language, chinese, english and Russia …. )
3, User manual, PC software installation instruction and PC software and Android APP download link:
4, For Android APP :
A: APP only support android 5.0 and above . B: Allow APP to do in the background, not be cleaned. C: allow APP self-starting. D: Allow APP stay after screen locked, not be cleaned.”

The android app does work; I have used it myself.

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