On Mon, 23 May 2005 14:54:34 UTC, Ian Stirling
wrote:

But, on some loads, some of these can be very inaccurate.
Both the Lidl ones, and the one from maplin drastically over-read (double)
on many PCs, for example.
Fine on heaters, motors, lights, ...

I was aware of that. In my case, I'm more concerned with relative load
of the same appliance under differing conditions....!

--
Bob Eager
begin a new life...take up Extreme Ironing!