[snip]

The sender unit unit used a 12V battery in it which I thought was a bit
odd.

A23? This battery has the diameter of an AAA cell and is about 2/3 as long.

Jon




--
Mark Lloyd
http://notstupid.us/

"The churches erected in the name of God will ere long be tombstones to
his, memory." [Lemuel K. Washburn, _Is The Bible Worth Reading And Other
Essays_]