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The mini voltmeter module is capable of testing voltage between 2.5-30V DC. 0.28 inch invisible LED display enables you to read data clearly even in the darkness. With reverse polarity protection, you don’t have to worry about burning out. Small in size and light in weight, it is convenient to carry out.


  • Precision automatic adjustment, when less than10V accurate to 0.01V, more than 10V accurate to 0.1V.
  • 0.28 inch visible LED display, easy to read even in dim light.
  • Two wire connection, with reverse polarity protection. Leave you no worry about burning out.
  • Detection range of voltage is 2.5-30V DC 9 (please note the maximum testing voltage can’t be over 40V).
  • Small in size and light in weight, quite easy and convenient to carry out.
  • Comes with plastic shell for ensuring safety while using.


Detection Voltage DC 2.5 -30V
Working Current 30mA or less
Input Impedance 50kohm or more
Display 0.28 inch LED
Refreshing Rate About 100ms / times
Accuracy 1% (+/- 1 word)
Working Temperature -10~+80 degree.C
Working Humidity 10~80%
Working Pressure 80~106kPa 
Installation Hole 26 x 2.4 mm
Product Weight 4g
Product Size 30 x 11.5 x 9 mm
Package Contents 1 x LED Digital Voltmeter

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