The relay available from Firex has dry contacts and can be used for 120 volt or low voltage loads. Here is a link (page 2 is in English)
Firex Relay We use these relays all the time on dwelling units so the alarm company can monitor our smoke detectors. We usually run a 14-3 to a single gang box near the alarm panel but you could install the relay any where its convenient as long as you can get a low voltage wire from the alarm panel to it.
If you decide to replace all of the smoke alarms find another alarm contractor. 14-3 NM-B is an acceptable wiring method fo the low voltage detectors. If the company you’re talking to realizes that they are going to loose a very lucrative monitoring contract because they want to replace all the wire they might change their mind.
Curt
[This message has been edited by caselec (edited 07-09-2004).]
