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This digital panel meter easily connects to any DC power supply you want to monitor. Just connect the red wire to the positive supply and the black one to ground. The display features a microcontroller that will read the voltage, compare it to a constant reference, and display the voltage with an accuracy of 0.1V.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.