The Kill-a-watt is a home energy monitor designed for assessing how much electricity a certain appliance or electronic uses.

Unlike some other home energy monitors we’ve covered, the Kill-a-watt monitors one outlet, not your entire home. This allows you to see how much electricity a certain appliance or set of electronics uses by plugging them directly into the outlet on the front of the Kill-a-watt.

The screen will be right above the outlet, so it’s not exactly convenient for long term use either, however this is not intended as a permanent monitor anyway.

Assessing your appliances or electronics can help you locate sources of power drain by selectively plugging in suspected culprits. One advantage over full-house energy monitors.

The Kill-A-Watt comes with a bunch of analysis features as well. It allows you to forecast how much an appliance or electronic is going to cost you based on it’s current wattage. If you do want to use it  in a permanent location, it has a cumulative kilowatt-hour monitor as well. It’s accuracy is rated at within 0.2%.

kill-a-watt 2

You can get the Kill-A-Watt from thinkgeek for $29.99.

(pictures via thinkgeek site)

One thought on “Kill-A-Watt”

  1. I own one of these – bought it over a year ago. I used it just like this article describes to explore the power used by the stuff in my apartment. I blogged about the results:

    Some interesting results – turns out my desktop computer is close to using as much power as the fridge. Wall Warts, which everyone worries about, were not a serious problem in my apartment. But I discovered that our JVC sound system used lots of power even when off – something like 5% of all the power we use.

    Anyway, if you are curious I recommend buying one – you may discover something which will save you as much money as it costs to buy, and the climate impacts are yours to keep forever :-).

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