The Sensedge Mini uses modular sensors, and each of these modules are individually calibrated at the factory during the production process.
During usage, each module calculates the hours of usage and concentration of pollution that the sensors have been exposed to. When the sensors need to be replaced, the sensor module status lights above the sensor module bays will turn red.
You can simply replace the sensors, without needing to recalibrate the entire device. The replacement process takes only a few seconds, and compared to traditional off-site calibration, saves both time and money. Read more about the benefits of modular sensors here.
For detailed instructions on how to change the sensors for the Sensedge Mini, please read here.