Detector of temperature and humidity controller

The invention relates to a detector of a temperature and humidity controller. The detector of the temperature and humidity controller comprises an analog signal source component and a detection component. The analog signal source component comprises a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are respectively connected with a temperature control switch and a humidity control switch. The temperature sensor and the humidity sensor are independently placed into a sealed temperature simulation tube and a sealed humidity simulation tube. The detection component utilizes a green indicating lamp and a red indicating lamp that are respectively connected with a voltage relay for constituting a lamplight judging loop. The detector of the temperature and humidity controller is mainly applied to daily works for directly judging whether the temperature and humidity controller is good, without being limited to the ambient temperature and relative humidity. The detector of the temperature and humidity controller is able to detect the temperature and humidity controller under the normal state. The detector of the temperature and humidity controller increases the reliability of the temperature and humidity controller in service, and increases the safety of the equipment. Being simple in use and convenient to carry, the detector of the temperature and humidity controller can be reused, accordingly saving labor and material resources, increasing the working efficiency, as well as saving resources and protecting the environment.