It's a fair investment ($200 on eBay), but I'd recommend a sensaphone
attached to a thermalarm.

The Thermalarm handles both hot and cold setpoints, and I've got my
Sensaphone set to go off in my home office, and if I don't reset it there,
call my home phone if there's a problem. If nobody acknowledges the call by
putting in a password, it then calls my office. Failing that, my cell
phone, and there's an option for a 4th number as well.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

.. . . . . . . . . . .
"Susan Erickson" wrote in message
...
On Sun, 18 Jan 2004 13:51:11 GMT, dusty wrote:
Of utmost importance in my book is a temperature alarm system for both
high
and low temperatures that sounds inside your house and is loud enough to
wake you at night and one that has a battery back up. I had to learn the
hard way. A power failure in the summer and a heating hot water pump
failure in the winter. I put in the alarm after cooked orchid summer but
in
the winter it wasn't loud enough and the greenhouse went down to 36 F or
2.2C when I discovered it.
dusty

You got to yours earlier then we got to ours. We had plastic
pipe for mister lines. When it froze - it broke, when it thawed
and started to leak into the house - we found it. Now we have a
display several places and a monitor.
SuE
http://orchids.legolas.org/gallery/albums.php