Voltmeter contains information about the RedPower mod.
Crafting[]
Usage[]
The voltmeter can be used to check the voltage and the current passing through a wire. If you right click on a piece of wire or a machine (as they also act as wires), it tells you the voltage and current reading in Volts and Amperes. Small fluctuations in the readings are normal; these happen as the system tries to reach an equilibrium.