Carbon monoxide detectors; Smoke detectors; Fire and smoke detectors; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors

Carbon monoxide detectors; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Smoke detectors; Fire and smoke detectors

Safety sensors, namely, smoke detectors, fire detectors, carbon monoxide detectors, and combinations thereof, and accessories for safety sensors, namely, accessories for indicating battery life for safety sensors