Re: Smoke Det. Search

[Frank Olson <use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>]

Jim Rojas wrote:
> Thats how DC smoke detectors work. Unless something has changed, only
> 110V smoke detectors all sound off at the same time. To get a DC smoke
> to auto reset is a violation of NFPA72. You can setup the zone to verify
>  the alarm, but as far as auto reset without a panel reset breaks some
> NFPA72 rules I believe.
>
> Try Firex and Hochiki smokes.
>
> Jim Rojas


I think he's actually looking for a DC smoke *alarm*, and not a system
smoke detector.  Many of the four wire DC smoke alarms will "auto reset"
(just as your 110VAC smoke alarms will) when the smoke source is removed
(or clears the sensing chamber).