In article ,
dave L wrote:
As they're sold as a current-detecting device (ie, to show if a
components is live and likely to shock you) I think they're perhaps
mis-sold.

Think of them more as a voltage detecting device as they draw so little
current.

And as the old saying goes, it's better to be safe than sorry - if you
switch off at the main when it lights up *anywhere*, you'll be doing the
safe thing.

--
*How many roads must a man travel down before he admits he is lost? *

Dave Plowman London SW 12
RIP Acorn