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Joshua Putnam

In article et,
says...
I'm talking about those standard roadside USPS boxes.

Mine's in front of the house and I'm wondering if there's a gadget that can
tell you by sight, or maybe electric trip switch, if there's something in
the box.

At a previous employer, our mailbox was a quarter mile from the office.
We had a device with a tilt switch and a radio transmitter that detected
when the door was opened, rining a bell in the front office. Don't know
where he got it, other than it was from a mail-order catalog.

--
is Joshua Putnam
http://www.phred.org/~josh/
Books for Bicycle Mechanics and Tinkerers:
http://www.phred.org/~josh/bike/bikebooks.html