Self-inspection method and device for sampling unit in moisture-proof device

The invention discloses a self-inspection method and device for a sampling unit in a moisture-proof device, wherein the plurality of moisture-proof devices are respectively applied to a plurality of box bodies of the electrical devices, and the self-inspection method utilizes the temperature sampling units of the moisture-proof devices arranged in the plurality of box bodies to carry out the transverse comparison of temperature values so as to realize the self-inspection of the temperature sampling units. The humidity in a box is changed along with the temperature change of the environment, sothat whether the relative humidity value of a humidity sampling unit and the box body changes correspondingly or not is judged according to the temperature change in the box body in which the humidity sampling unit is located, and the self-inspection of the temperature sampling unit is achieved. The manual participation is not needed in the self-inspection process, and the problem that in the existing moisture-proof devi