Alarms for the detection of inflammable gases; Apparatus for measuring the speed of golf swing; Astronometric measuring machines and instruments; Carbon monoxide detectors; Electric switch plates; Electrical outlet plates; Electrical plugs and sockets; Fire alarm and emergency evacuation devices, namely, fire alarm control panels, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; Fire and smoke detec...