The company highlights that not all applications can guarantee the exposure of a sensor to air for a baseline concentration. In other words, to apply automatic baseline calibration algorithms (i.e., “ABC” or “ASC”). NDIR sensingSensirion writes:“The SCD53 combines Sensirion’s leading expertise in photoacoustic NDIR sensing with advanced laser technology for excellent long-term stability independent of fresh-air based recalibration algorithms. Furthermore, the sensor provides best-in-class accuracy with robustness against dust, vibrations or mechanical forces. And its operating temperature range is from -20 to 60°C.