Reply to Thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="TerryMiller" data-source="post: 3257252" data-attributes="member: 7900"><p>I noticed after our fire alarm fiasco here in Indiana that all the doors to the stairways are opened and held open by a magnetic device.  Apparently, when the fire alarm goes off, those magnets are disabled, allowing the doors to close.  Don't know about the elevator controls, but at least some things are automatic.</p></blockquote><p></p>