DIY smart meter
If you like more than just a monthly electricity bill, then a whole-house electricity monitor can fill in some of the gaps. This is a sensor made by Wattvision that attaches to an electricity meter to track how much electricity is being consumed in real time. It's one of a few whole-house energy monitoring products that are designed to give people more insight into how they use electricity and clues on how to reduce waste.
January 21, 2012 3:59 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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