Buy.com offers P3 International's Kill-a-Watt EZ Electricity Usage Monitor
, model no. P4460, for $29.99
with free shipping
. That's $5 under our September mention and the lowest total price we've seen.
This electricity usage monitor connects to appliances and assesses efficiency. It calculates the electricity costs and gives you weekly, monthly, or yearly forecasts.
Of note, Meritline.com still has this Plug-In Power Monitor for $16.99 with free shipping, as we mentioned Sunday. It appears to be a generic version of the similar Kill-A-Watt P4400.