Although home energy tracking devices like the single-outlet Kill A Watt or the whole-house Power2Save unit are gaining popularity in this energy-conscious age, I hadn’t tried one out until my electric bill topped out at $150 in January. That prompted me to invest in anEnergy Detective, a device that retails for $145 and promises to give homeowners a telling glimpse into their personal energy.

Full story: At Home With the Energy Detective – Green Inc. Blog – NYTimes.com