UM24 USB Color LCD Power Meter Voltage Current Power Meter

Package: UM24


UM24C / UM24 USB Tester can measure voltage, current, power, temperature and other values and display on the 1.44" color LCD Screen.

UM24 is no communication version, UM24C is conmmunication version by Bluetooth connection.
1.44 Inch color LCD display makes it easy and clear to read.

Adjustable multi-angle view, more intelligent and convenient.
Mini size and sandwich design structure, durable for use.

Main functions: voltage / current / power / capacity / energy detection, quick charge recognition, data storage, etc.
Wide applications: can be used to test power bank, charger, discharge load, tablet, mobile phone, etc.

Technical Parameter:

  • Product Model: UM24/UM24C
  • Product weight: 23.47g(UM24C) / 18.83g(UM24)
  • Voltage measurement range: 4.50-24.00V
  • Voltage measurement resolution: 0.01V
  • Current measurement range: 0.000-3.000A
  • Current measurement resolution: 0.001A
  • Capacity accumulation range: 0-99999mAh
  • Voltage measurement accuracy: ±(0.2%+1 digit)
  • Energy accumulation range: 0-99999mWh
  • Current measurement accuracy: ±(0.8%+3 digit)
  • Load impedance range: 1.5-9999.9Ω
  • Time measurement range: 0-99h59min59s
  • Temperature range: -10℃ ~ 100℃/0℉ ~ 200℉
  • Temperature measurement error: ±3℃/±6℉
  • Screen brightness setting: 0-5 level
  • Auto screen off time: 1-9mins
  • Voltage graphing range: 04.5-24.0V
  • Current graphing range: 0.00A-3.00A
  • Display screen: 1.44 inch color LCD display
  • Quick charge recognition mode: QC2.0 QC3.0
  • Refresh rate : 2Hz
  • Product size: 71.2mm x 31.8mm x 12.4mm (UM24C)
  • 71.2mm x 31.8mm x 11.3mm (UM24)


  1. UM24 is no communication version, UM24C is conmmunication version by Bluetooth connection.
  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. About demo video and APP test and other function introduction, pls contact with us.
  5. 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.

Package List:
1Pc USB Color Display Tester

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