Do your own energy audit a Kill A Watt meter records usage of pluged in
devices. A good clamp on amp meter can check wired units and detect
shorts to ground, learn what uses what then you can see what to replace
Radio Shack used to sell "Kill A Watt" meters, but I got the last one my
local store had. Website for manufacturer is www.p3international.com
It is limited to 125 VAC, 15 amp and displays volts, amps, watts, VA, Hz,
powerfactor, and kWh. But it loses its kWh memory if power goes out (or
On Wed, 24 Nov 2004 03:52:09 +0000 (UTC), firstname.lastname@example.org (David
If you think your main meter is inaccurate, by all means contact your
power company. More than likely they have a whole department of
experts whose job it is to do meter calibrations. Even though the
utility loves it when you use their power, they have an interest in
the meter being accurate as well.
It is unlikely that the consumer grade plug-in watt hour meters that
are becoming available now are going to be more accurate then a built
in residential electric meter especially when connected to modern
TV's, computers, etc. which are completely non-linear. These plug ins
are good for an estimate only. Precise (laboratory grade)
measurements require very expensive equipment.
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