This is an integrated temperature and humidity sensor ideal for the functioning with batteries and portable instruments. It is based on NDIR technology and a double channel detector for a higher stability. The measurement ranges used for this sensor are 400 ppm – 10.000 ppm and 0-1%. The performance/price ratio is very good and it is totally calibrated and linearized. The CO2 sensor is suitable for ventilation control in buildings and indoor greenhouses. The height of the sensor is 7 mm in the thickest part of SCD30. A SCD30 sensor weights 3.4 g.