| 摘要 |
A gas sensor is provided which has a water-repellent filter and a rubber tube through which air is admitted to inside the gas sensor. The water-repellent filter extends from an end of an air cover in a lengthwise direction of the gas sensor and is kept in a lower-temperature atmosphere to have enhanced thermal durability. The water-repellent filter is retained by a first and a second cover around an outer periphery of the rubber tube in contact therewith. The first and second cover are located away from each other in the lengthwise direction of the gas sensor so as to provide the flexibility to the water-repellent filter and the rubber tube, thereby permitting them to be bent elastically to decrease an overall height of the gas sensor, which facilitates ease of installation of the gas sensor in a narrow space.
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