The Heads on Fire Community

The Enerjar is a device that allows us to measure how much electricity devices are using. It plugs one end into the wall, and the end of the device you are measuring plugs into the enerjar. The enerjar works by measuring the amount of electricty that comes into it through the wall, and then measuring how much electricty is going out to the product you're measuring. The amount of energy that is being used is displayed on an LED display.

Parts needed for Enerjar:

Images of a completed Enerjar:

Schematics of Enerjar:

EnerJar Internals: