alarm monitor

Thread Starter

Morty642

Joined Sep 24, 2013
2
Can someone help please. I require a product or circuit which will respond to the sound from a fire alarm, and provide a voltage free trigger to close an automatic door opener
 

wayneh

Joined Sep 9, 2010
17,496
What's a voltage-free trigger? Do you mean closing a contact, or the equivalent?

A wire from the alarm to the door, to avoid needing to "hear" the alarm, would be the most sure solution.
 

Thread Starter

Morty642

Joined Sep 24, 2013
2
A closing contact is correct. Wiring into a 3rd party alarm is not possible for this job, so I wondered if anyone had any thoughts
 
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