To provide a humidity sensor device for an agricultural house in which the humidity sensor is arranged in a housing where a fan is embedded, and a fan is turned off in a high-humidity environment at night to protect the humidity sensor.SOLUTION: A humidity sensor device is installed in an agricultural house in which a humidity sensor and an illuminance sensor are arranged in a housing thereof. An electronic fan is installed in the housing in which the fan is controlled to be turned on during the daytime, and turned off when it becomes high humidity during the night. Determination whether daytime and nighttime is done by an illuminance sensor signal and determination whether high humidity is done by a humidity sensor signal. The fan is installed to discharge heat from the housing into outside.SELECTED DRAWING: Figure 1【課題】ファンを組み込んだ筐体に湿度センサを備え、夜間の高湿度環境では湿度センサを保護するためファンをＯＦＦとする制御を提供する。【解決手段】農業ハウス内に設置される湿度センサ装置であって、ハウジング内に湿度センサと日照度センサとを収納する。ハウジング内には電動ファンが配設され、昼間はＯＮに、夜間は高湿度となるとＯＦＦとする制御が行われる。昼夜の判断は日照度センサ信号にて、高湿度の判断は湿度センサ信号にて行う。ファンはハウジング内部の熱を外部に放出する目的で設置された。【選択図】図１
