RD UM34 for APP USB 3.0 Type-C DC Voltmeter Ammeter Voltage Current Meter Battery Charge Measure Cable Resistance Tester (Without Communication Version)


In stock

SKU: 1187633
  1. Model: UM34
  2. Screen Brightness Setting: 0-5 Level
  3. Auto Screen Off Time: 0-9mins


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Brand: Generic
Category: Digital Voltage, Current and Frequency Meter

This new updated version RD UM34 USB 3.0 Type-C DC Voltmeter Ammeter Voltage Resistance Tester(Without Communication Version can measure voltage, current, power, temperature, and other values and display on the 1.44″ color LCD Screen.


  1. 1.44 Inch color LCD display makes it easy and clear to read.
  2. Adjustable multi-angle view, more intelligent and convenient.
  3. New Type-C interface, 4 direction rotation color screen, 6 levels screen brightness adjustment & 6 measurement display interface.
  4. Load impedance measurement, temperature display, screen brightness adjustment, line resistance measurement and DIY background settings.
  5. Main functions: voltage/current/power/capacity/energy detection, quick charge recognition, data storage, etc.
  6. Wide applications: can be used to test power bank, charger, discharge load, tablet, mobile phone, etc.


  1. Model: UM34
  2. Function: no communication version (UM34)
  3. Display Screen: 1.44 Inch Color LCD Display
  4. Voltage Measurement Range: 4.000-24.000V
  5. Voltage Measurement Resolution: 0.01V
  6. Voltage Measurement Accuracy: ±(0.2‰+1digit)
  7. Current Measurement Range: 0-5.0000A
  8. Current Measurement Resolution: 0.001A
  9. Current Measurement Accuracy: ±(0.8‰+3digit)
  10. Capacity Accumulation Rannge: 0-99999mAh
  11. Energy Sccumulation range: 0-999.99Wh
  12. Time Measurement Range: 0-99h 59min 59s
  13. Load Impedance Range: 0.8Ω-9999.9Ω
  14. Temperature Measurement Range: -10℃~100℃/0℉~200℉
  15. Temperature Measurement Error: ±3℃/±6℉
  16. Screen Brightness Setting: 0-5 Level
  17. Auto Screen Off Time: 0-9mins
  18. Voltage Graphing Range: 0-24.00V
  19. Current Graphing Range: 0-4.0000A
  20. Data Storage: 10 Groups
  21. Quick Charge Recognition Mode: QC2.0, QC3.0, APPLE 2.4A/2.1A/ 1A/0.5A, Android DCP, SAMSUNG
  22. Refresh Rate: 2Hz
  23. Product Size: 71.2 * 30.5 * 11.3mm
  24. Product Weight:  18.39g
  25. Package Size: 8.8 * 6.8 * 2.0cm
  26. Package Weight: 48g

UM34 is no communication version, UM34C is conmmunication version by BT connection.  And UM34C don’t have PC software , only have APP for android.
Phone Android (Android 5.0 and above, support 18 kinds language, chinese, english and Russia, etc).
User manual and Android APP download link: //www.mediafire.com/folder/5c877rc21tp1p/UM34
There are some incompatibility problem between some android phone and our bt board, please purchase carefully, such as Samsung NOTE8 / S8
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 Includes:

1 x RD UM34 USB 3.0 Type-C DC Voltmeter Ammeter Voltage Resistance Tester

1 Month Warranty

This item is covered with a standard warranty of 1 month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China