Carbon monoxide detectors;Combination carbon monoxide and smoke detectors;Carbon dioxide detectors;Gas alarms;Electric alarms for smoke;Smoke alarms;Apparatus for testing carbon monoxide detectors using an aerosol spray;Alarms for the detection of inflammable gases;Electric alarms for fire;Electric alarms;Gas leak alarm systems;Smoke alarm testers;Alarm sensors;Electronic carbon dioxide monitors [other than for medical purposes];Electronic carbon dioxide monitors, other than for medical purposes;Electric smoke detectors;Electric smoke sensors;Combustion gas detectors;Combustible gas concentration detectors;Detectors (Smoke -);Smoke sensors.;