Smoke alarms; Smoke detectors; Apparatus for testing carbon monoxide detectors using an aerosol spray; Carbon monoxide detectors; Device for testing the function and effectiveness of smoke detectors, carbon monoxide detectors and heat detectors featuring an aerosol spray; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Smoke alarm tester in the nature of a cool burning smoke generator; Combustible gas concentration detec...