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2015NEW KEYESTUDIO MQ135 Air Quality Sensor MQ-135
MQ135 adopts SnO2 as its gas sensitive material because SnO2 has low electrical conductivity in the clean air. So when surrounded by polluted air£¬ the electrical conductivity of MQ135 will increase with the increase of pollutants£¬ and the change in electrical conductivity can be converted to corresponding output signal. MQ135 has a high sensitivity to Ammonia£¬ sulfide£¬ benzene vapor£¬ smoke and other harmful gas. It can detect various harmful gases£¬ making it a cost-effective choice suitable for multiple applications.