This Cubic monitor / sensor indicates the current air quality in your area. The CO2 sensor NDIR is self-calibrating and of the highest quality. The Cubic provides direct insight into the level of: particulate matter (PM2.5), the CO2 level, the temperature and the humidity in the environment. Due to the compact dimensions of the Cubic, it is ideal to place on a table or desk so that it can be easily monitored. The display of the Cubic is medium-lit, so that it also perfectly shows the values in the dark without completely illuminating the room.