For alarms, I don’t think so because once a horn mechanism is declared to be outdated, they usually scrap it and don’t go back to it. That is why electromechanical horns will be wiped out in 75 years. As for pulls and detectors, I have no idea.
For alarms, I don’t think so because once a horn mechanism is declared to be outdated, they usually scrap it and don’t go back to it. That is why electromechanical horns will be wiped out in 75 years. As for pulls and detectors, I have no idea.