DX  » Community » Reviews » 2.2" LCD Digital Panel Voltmeter with Blue Backlight (7.2~20V)
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  • Overall Rating: 5
  • Price: 5
  • Quality: 5
  • Ease Of Use: 5
  • Usefulness: 5
Very Accurate and easy to Use – 2.2" LCD Digital Panel Voltmeter with Blue Backlight (7.2~20V) Reviews

posted by stefanhengen on 09/04/2012 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

Pros:
Affordable price Low power consumption Nice design Very accurate readings
Cons:
Contrast with blue Backlight could be better, amber would give a better contrast.
Other:
I Compared this device to a calbrate volatge source, the readings were usually within +- 10mV of the source voltage. At the back of the device are two potentiometers, i think they are for calibration, but since my device worked well, i did not test this. Power consumption was ~8mA with background ilumination. Without ilumination (cable unsoldered) power consumption goes down to ~3.6mA.
Bottomline:
Very good value for money, the device works well, the readings are very accurate and the power consumption is very low. The device could be connected to a car batterie for months without noticable drain the battery. This is even better if you disconnect the ilumination.

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