... detectedVOCs ( toluene emitted from wood finishing and construction products);Cigarette smoke( hydrogen, carbon monoxide);ammonia and H2S, alcohol, natural gas ... , IP30 protection classQuality standardISO 9001 1) Wall mounting, VOC detector is used to real time detect room VOC level2) With ... kinds of odorous gases and combustion gas in the room (smoke, CO, alcohol, human odor, material odor).4) With ...