RD UM34C USB 3.0 Type- C Color LCD Display Tester Voltage Current Meter Voltmeter Ammeter Battery Charge Cable Impedance Resistance Measurement Communication Version

  • Product Code: E4058-2
  • Availability: In Stock

  • $44.38

Available Options

  • Package Weight : 56.5g

  • Package Width : 6.8cm

  • Package Height : 2cm

  • Package Length: 8.8 cm

This new updated version USB tester can measure voltage, current, power, temperature and other values and display on the 1.44" color LCD Screen.


1.44 Inch color LCD display makes it easy and clear to read.

Adjustable multi-angle view, more intelligent and convenient.

New Type-C interface, 4 direction rotation color screen, 6 levels screen brightness adjustment & 6 measurement display interface.

Load impedance measurement, temperature display, screen brightness adjustment, line resistance measurement and DIY background settings.

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.


Model: UM34, UM34C (optional)

Function: no communication version (UM34) / conmmunication version by BT connection (UM34C)

Display Screen: 1.44 Inch Color LCD Display 

Voltage Measurement Range: 4.000-24.000V

Voltage Measurement Resolution: 0.01V

Voltage Measurement Accuracy: ±(0.2‰+1digit)

Current Measurement Range: 0-5.0000A

Current Measurement Resolution: 0.001A

Current Measurement Accuracy: ±(0.8‰+3digit)

Capacity Accumulation Rannge: 0-99999mAh

Energy Sccumulation range: 0-999.99Wh

Time Measurement Range: 0-99h 59min 59s

Load Impedance Range: 0.8Ω-9999.9Ω

Temperature Measurement Range: -10℃~100℃/0℉~200℉                

Temperature Measurement Error: ±3℃/±6℉

Screen Brightness Setting: 0-5 Level

Auto Screen Off Time: 0-9mins

Voltage Graphing Range: 0-24.00V

Current Graphing Range: 0-4.0000A

Data Storage: 10 Groups

Quick Charge Recognition Mode: QC2.0, QC3.0, APPLE 2.4A/2.1A/ 1A/0.5A, Android DCP, SAMSUNG                  

Refresh Rate: 2Hz

Product Size: 71.2 * 30.5 * 12.4mm (UM34C) / 71.2 * 30.5 * 11.3mm (UM34)    

Product Weight: 22.87g(UM34C) / 18.39g (UM34)

Package Size: 8.8 * 6.8 * 2.0cm

Package Weight: 48g(UM34), 52g(UM34C)


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 List:

1 * USB Tester

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