半导体式气体传感器MQ136***1-200ppmMQ-2可燃气体、烟雾300to10000ppmMQ-4***、***300to10000ppmMQ-5液化气、***、煤制气300to5000ppmMQ-6液化气、异丁烷、丙烷100to10000ppmMQ-8氢气、煤制气50to10000ppmMQ306A液化气、***、煤制气300to5000ppmMQ214***300to5000ppmMQ216液化气、***、煤制气100to10000ppmMQ-7***CO10to1000ppmMQ307A***CO10to500ppmMQ217***CO10-1000ppmMQ-9***、可燃气体10to1000ppmCO、100to10000ppm可燃气体MQ309A***、可燃气体10to500ppmCO、300to5000ppm可燃气体臭氧O30.01-2ppmO3/10-500ppmO3氨气、苯、酒精、烟雾10-300ppmNH3、10-1000ppm苯、10-600ppm酒精、1%/-10%/m3烟雾MQ137氨气10-300ppmMQ138醇类、苯类、醛类、酮类、酯类等有机挥发物5-5000ppm酒精（乙醇）10to1000ppmMQ303A酒精（乙醇）20to1000ppmMQ213酒精10-1000ppm)