Gas sensor and detector

The utility model discloses a gas sensor and a detector, and belongs to the technical field of environmental gas detection. The detector comprises a gas sensor, the gas sensor comprises a filter assembly and a sensor main body, the filter assembly comprises a first filter assembly and a second filter assembly, the first filter assembly is used for filtering winged insects in external gas, and the second filter assembly is used for filtering dust and interference gas in the external gas; the sensor main body is used for detecting external gas filtered by the filtering assembly, the sensor main body comprises a first gas inlet through hole, the filtering assembly is detachably connected to the sensor main body, and a second filtering assembly and a first filtering assembly are sequentially arranged outside the first gas inlet through hole. The gas sensor and the detector are long in service life, convenient to maintain and low in cost. 本实用新型公开了一种气体传感器及探测器，属于环境气体检测技术领域。该探测器包括气体传感器，气体传感器包括过滤组件和传感器主体，其中，过滤组件包括第一过滤