P3 Kill a Watt Electricity Usage Meter for $18.69 Shipped

[Spoofee]

SuperMediaStore.com has the P3 International Kill A Watt Electricity Usage Meter for a good deal.

Item has a rating of 4/5 from 10 reviews

Pricegrabber Price : $29.05 ~ $39.01 Shipped

1. SuperMediaStore Price : $21.99
2. Coupon Price : -15% | Code : 921EL15P
Final Price : $18.69 Shipped

 

[Darktide]

These are awesome! I don't use mine very often, but it definitely comes in handy once in a while.

Particularly useful to see how much power your computer draws under full load to know whether or not you need a new PSU for that video card upgrade

 

[bradchapin]

I believe that I saw the Kill-a-Watt EZ (EZ version tells you based on energy prices how much the appliance/device costs you per year) at Costco for ~26. Pricegrabber says 35-60 for that one. If you have a calculator you probably don't really need the EZ version anyway, but if you want it to be easy...