In article ,
Olav Marjasoo wrote:
Go back to Maplins and buy a Socket Tester, about £4-99. It plugs into
the socket, displays LEDs, and tests for more than just earth
connection.

IMHO, this does nothing a DVM won't, although it's quicker.

--
*No husband has ever been shot while doing the dishes *

Dave Plowman London SW 12
RIP Acorn