Electrical and electronic apparatus and instruments for detecting fire, heat, smoke and toxic and noxious substances, namely, carbon monoxide detectors, fire detectors, gas detectors, heat detectors, radon detectors, rate of rise detectors, smoke alarms and smoke detectors

Electrical and electronic apparatus and instruments for detecting fire, heat, smoke and toxic and noxious substances, namely, carbon monoxide detectors, fire detectors, gas detectors, heat detectors, radon detectors, rate of rise detectors, smoke alarms and smoke detectors