P3 P4400 Kill A Watt Electric Power Usage Monitor User Reviews

Good, but one caveat

Info on household item usage. Is not able to measure high-powered devices -- such as fridges, AC units, or washer/dryers -- due to nature of outlet on...

useful tool

very useful power meter for everyday electronics.

Works good, get an extension cord

Seems to work just fine, will show combined usage since power-on (plug-in) I'm a little surprised at exactly what uses how much energy. Plugs into the...

Nifty.

Does what it says it does. Size of the box makes it a little awkward to squeeze on to outlets without much space around them.