This sensor builds on the photoacoustic sensing principle and Sensirion’s patented PASens® and CMOSens® Technology to enable unmatched small sensor size combined with high performance. The integrated best-in class humidity and temperature sensor enables superior on-chip signal compensation and addition RH and T outputs. Finally, the large supply voltage range (2.4 V – 5.5 V), the robustness towards external stresses and the adjustable power consumption make the SCD42 the perfect fit for varying customer needs. This small breakout board is based on the SCD42 module and you can use this sensor in your IoT devices.

Main features:

• Measurement range 400 - 2000ppm

• Accuracy: Baseline ±75ppm

• Response time (τ63%) 60s

• Typ. relative humidity accuracy 6%RH

• Operating relative humidity range 0 - 95%RH

• Response time (τ63%) 120s

• Supply voltage 2.4 - 5.5V

• Average supply current 18mA

• Max. supply current 205mA

• Interfaces I²C

• Size (LxWxH) 10.1 x 10.1 x 6.5mm³

• Typ. temperature accuracy 0.8°C

• Operating temperature range -10 - 60°C

• Response time (τ63%) 120s