In message , "Dave Plowman (News)"
writes
In article ,
Ian Jackson wrote:
If it could be used on a variety of voltages (120V, 200V - in Hong Kong,
220) and 230/240V), that meter could be extremely useful.

Quite. it serves no purpose in the UK since it couldn't resolve any likely
voltage variations - even for those so anal they wanted to know.

But it could be useful if you had the need to operate some 120V
equipment using a step-down transformer (especially a variac).
--
Ian