Belimo Americas is excited to release the new dual channel CO2/temperature sensors with an increased range to 5000 ppm. The dual channel technology measures two-wave lengths split from a single light source. Belimo dual channel CO2/temperature sensor The sensor automatically takes a reading using the reference channel. Any change in the measurement indicates a change in the optics of the sensor. The sensors automatically adjusts the CO2 measurement when a change is detected to prevent drift. Read More