Based on Sensirion’s CMOSens^® Technology, the SGP40 offers a complete sensor system on a single chip featuring a digital I²C interface, a temperature-controlled micro hotplate, and a humidity-compensated indoor air quality signal. In combination with Sensirion’s powerful VOC algorithm, the sensor signal can be directly used to evaluate indoor air quality, e.g., for triggering the gradual fan control of an air treatment device. Both, SGP40 chip and VOC algorithm feature an unrivalled robustness in the final application over lifetime. Pushing the multipixel and multihotplate approach to the next level towards individual control of each sensing element, SGP40 enables a drastic reduction in power consumption making it also suitable for battery-driven applications. Sensirion’s state-of-the-art production process guarantees high reproducibility and reliability.