Product description
SCD40-D-R1 – Ultra-compact CO₂ sensor with integrated temperature and humidity measurement. The SCD40-D-R1 from Sensirion belongs to the new generation of photoacoustic CO₂ sensors based on NDIR technology. It combines high measurement accuracy with a very small form factor, making it ideal for integration into consumer electronics, building automation, and IoT applications.
Features:
- CO₂ measurement range: 400–2000 ppm
- Accuracy: ±(50 ppm + 5% of reading)
- Integrated sensors: Temperature and relative humidity for automatic compensation
- Interface: I²C with standard protocol for easy integration
- Supply voltage: 2.4–5.5 V
- Current consumption: approx. 15 mA (typ.)
- Form factor: only 10.1 × 10.1 × 6.5 mm
Benefits:
- Extremely compact design enabling space-saving constructions
- Stable performance even under varying temperature and humidity conditions
- Energy-efficient operation suitable for battery-powered systems
- Factory-calibrated for immediate use
Typical applications:
- Indoor air quality monitoring and ventilation control (HVAC)
- Smart homes and building automation
- Air monitoring in offices, schools, and public environments
- IoT and portable devices requiring low power consumption and high integration
