Electronic Alarms and Home Security Devices - smoke alarms

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594tough
12-23-04, 08:58 PM
Hope this is the right forum.\

Can anyone give me a quick primer on the multi-unit interconnect feature on smoke alarms ( such as First Alert, Firex, Kidde, Gentex)

Some of these have just 3 wires on the pigtail, some have multiple. Is there a general rule as far as which ones can be "mixed" with each other?

Is the interconnect a 120v signal, or low voltage, or digital?

Sorry for so many questions. Just a little confused!


MrRonFL
12-24-04, 05:33 PM
It varies a bit. Most of the mass market brands can be mixed. Others, like Gentex, for example, will not interconnect with other brands. Basically, you have to check the spec sheets for each.