Analog Front-End Circuit (AFE) A4 Series Air Quality Sensor
Based on the product design, the A4 series air quality sensor needs to be used with an analog front-end circuit (AFE): since portable monitoring devices require a compact and small size, we have designed the circuit board with a high component density, saving valuable space for your monitoring device. Now, simply connect the AFE and A4 sensor to a multiplexed ADC to quickly record air quality data.
