The primary inspiration for our project was the EnerJar, developed by Matt Meshulam and Zach Dwiel at Washington University in St. Louis. The Kill A Watt is a similar commercially available product. We improved upon the EnerJar by making it safer and simplifying the design significantly. The EnerJar is not optically isolated and therefore is potentially very dangerous. We extended upon the Kill A Watt by developing a computer interface to provide real time graphs and remote switching.