I have used wireless systems in my museum buildings. Occasionally minor problems occur. The nice thing is that they can be painted whatever color you want and they do not permanently damage anything. I've used this type of system in a 255 year mansion of 10,000 square feet with several outbuildings added to the same system. I t reduces the cost and time of hard wiring. The system should be checked twice a year with a full battery changeout every year. Yearly maintenance is about 900.00. Regards, Will Brobst Region III Manager Montgomery County Parks and Services Department Norristown, PA Sent via BlackBerry by AT&T -----Original Message----- From: [log in to unmask] Date: Thu, 17 Apr 2008 15:38:02 To:[log in to unmask] Subject: [MUSEUM-L] Security Systems We are currently looking into updating our security system, which includes fire and motion detectors, at Hanford Mills. We are thinking about changing over to a wireless system. I was wondering if anyone using a wireless system could give me feedback on your overall experience with it. Suzanne Soden Curator Hanford Mills Museum PO Box 99 East Meredith, NY 13757 ----- ---------------- Get the MapQuest Toolbar <http://www.mapquest.com/toolbar?NCID=mpqmap00030000000003> , Maps, Traffic, Directions & More! ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).