A humidistat has a sensor that detects the temperature of a room. For example, an air conditioner has a humidistat that senses the temperature of the room it is cooling. This reading is sent to the unit's remote control, which displays the reading. The user can use this information and decide if the air conditioner needs to be adjusted.
Humidity is the amount of moisture, or water particles, contained within a space. Excessive humidity causes mildew, while a dry atmosphere can kill plants growing indoors. Therefore a humidistat is used to monitor and control the humidity level of a room. It has a built-in sensor that measures this level and can be used in conjunction with a humidifier or dehumidifier. These devices can be programmed to control the level of moisture in the air.
The monitoring systems of a humidistat are crucial mechanisms that enable the atmosphere of a room to be controlled by this device. The information picked up by the sensors is fed back to a computer within the humidistat. Depending how technologically advanced the device is, a graph can be produced or the settings of the air conditioner, humidifier or dehumidifier changed automatically. The humidistat can adjust the equipment's settings so the atmosphere of the room changes to meet the programmed ideal temperature and humidity level.
A humidistat is often connected to a display screen or can send the information it detects to a remote-control device. The screen is a visual aid that provides feedback to the user about the room's conditions. The readings are recorded and displayed so the appropriate changes can be made to the humidity levels.