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Air quality control systems comprises of a wireless sensors and a control panel unit to adjust the ambient air quality in a room depending on user parameters. The sensor monitor consists of CO2 sensor (300 – 5000 ppm), temperature sensor (0 – 50 deg C) and humidity sensors (0% to 100% rH). The sensor unit has an inbuilt transmitter module that constantly send the sensor information to the receiver control unit. The communication happens over wireless RF technology.
User prefed the upper and lower watermark level for every sensor. When the ambient sensor values are received by the receiver controller, it compares the values with watermark levels. Depending on the programmed condition a particular electrical relay turns ON/OFF. The relays serves as actuators for an electrical device. Electrical devices like cooling (exhaust) fans, heater, humidifier etc. can be connected to the relay output. Once the watermark values are set the air quality control systems takes over and automatically turns ON/OFF individual relays to maintain the room condition to the desired levels.