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Mikolas struggles to pay the rent so he applies for a modeling job… not so Owner's Manual for First Alert Smoke Detector Model SA76RS [PittwayLearn how to find your alarm's model number and date of manufacture. This info can be helpful if you need to troubleshoot the unit or contact Support. Image of the 9V Ionisation Smoke Alarm with why do smoke detectors expire b07-105 Owner's Manual for First Alert Smoke Detector Model SA76RS [Pittway