The board has a display of six LEDs (green, orange and red) that display the air quality and a buzzer. Temperature and air quality readings can be read by your Raspberry Pi, and the buzzer and LED display can also be controlled from your Raspberry Pi.
The Air Quality Sensor board plugs directly into the back of a Raspberry Pi 400, but, can also be used with other models of Raspberry Pi, using the jumper wires and GPIO template included in the kit. It uses the CCS811 VOC sensor IC and a TMP235 temperature sensor. It also has a rudimentary display and a buzzer.
It also uses a bi-directional UART interface to communicate with the Pi.
The Air Quality Sensor board is designed for use with the Raspberry Pi 400 but also works with other models of Raspberry Pi using the jumper wires included in the kit.