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Service life expectancy on smoke detector's

Question asked by david.sparkes on Aug 29, 2019
Latest reply on Sep 6, 2019 by michael.j.bennett

In a commercial building like a detention facility (jail), does the NFPA have a set standard when you should replace existing smoke detectors, do they have a service life expectancy. What does the NFPA standards recommend? We have Simplex /Grinnell-Johnson Control smoke detectors and duct detectors and some of them seem to be aged but are still testing to work as intended.