A chlorine gas concentration monitor.
D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002712:Chlorides / Q000032:analysis*; D004864:Equipment and Supplies; D009787:Occupational Medicine / Q000295:instrumentation
D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D002712:Chlorides