可燃气,低报警值:10%LEL,高报警值:50%LEL;一氧化碳,低报警值:24ppm或30mg/m3,高报警值:160ppm或200mg/m3;硫化氢,低报警值:6ppm或10mg/m3,高报警值:20ppm或28mg/m3;氧气,低报警值:19.5%,高报警值:23%