On Sat, 22 Sep 2007 00:05:44 +0100, "Dave Plowman (News)"
wrote:


Thanks for the kind offer Peter - it certainly looks like it would do the
job.

They are quite good, and if you get a lot of interference fail inert
rather than false triggering. e-mail me your address if you want a
couple to play with.


--
Peter Parry.
http://www.wpp.ltd.uk/