Andy Dingley wrote:
On Wed, 12 Jan 05 19:41:41 GMT, (dmc) wrote:

While in maplin the other day I picked up one of these:

http://www.maplin.co.uk/Module.aspx?...1&source=15&Wo
rldID=&doy=12m1

This measures volt, current (and can show watts etc) as well as keeping track
of kwh etc.

It also measures watts, volt-amps and power factor, so you can find out
for yourself about all those different motors.


I was curious about that, but the Maplin list (and the salesdroid)
seemed to imply that it only measured immediate power. Can I set it
off counting for a week and come back to a tally of kWh ? I want to
track a dehumidifer that runs intermittently.


Although the product description doesn't mention kWh, the FAQ tab does.
The specific questions and the answers are very muddled about the
difference between "power" and "energy" but overall it seems fairly
clear - clear enough to take a punt for £12.50, so thanks for the tip!


--
Ian White
Abingdon, England