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SCD41-D-R2 - CO2 Sensor 400~5000PPM Air Quality Sensor, Single-shot Mode Supported


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₹2,655.00 inc. GST
₹2,250.00 ex. GST
The SCD41-D R2 is a compact CO₂, temperature, and humidity sensor with advanced NDIR technology for precise indoor air quality monitoring. Perfect for smart home and environmental applications. View full description
₹2,655.00 inc. GST
₹2,250.00 ex. GST
7 people looking at this.


The SCD41 is Sensirion’s next generation miniature CO2 sensor. This sensor builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PAsens and CMOSens technology to offer high accuracy at an unmatched price and smallest form factor. SMD assembly allows cost- and space-effective integration of the sensor combined with maximal freedom of design. On-chip signal compensation is realized with the build-in SHT41 humidity and temperature sensor.


  • Photoacoustic NDIR sensor technology PASens
  • Smallest form factor: 10.1 x 10.1 x 6.5 mm3
  • Reflow solderable for cost effective assembly
  • Large supply voltage range: 2.4 – 5.5 V
  • High accuracy: +-(40 ppm + 5 %)
  • Digital I2C interface
  • Integrated temperature and humidity sensor
  • Low power operation down to < 0.4 mA avg. @ 5 V, 1 meas. / 5 minutes

Q: What does the SCD41-D R2 sensor measure?

A: The SCD41-D R2 sensor measures carbon dioxide (CO₂) concentration, temperature, and humidity, making it ideal for monitoring indoor air quality.

Q: What technology does the SCD41-D R2 use to measure CO₂ levels?

A: The SCD41-D R2 uses advanced Non-Dispersive Infrared (NDIR) technology for accurate and reliable CO₂ concentration measurements.

Q: What are the main applications for the SCD41-D R2 sensor?

A: The SCD41-D R2 is used in smart home systems, HVAC control, environmental monitoring, and other applications requiring precise CO₂, temperature, and humidity measurements.

Q: How do I connect the SCD41-D R2 sensor to my microcontroller?

A: The SCD41-D R2 sensor connects via an I²C interface. You can integrate it with your microcontroller using standard I²C wiring and libraries available for platforms like Arduino and Raspberry Pi.

Q: What is the operating temperature range for the SCD41-D R2 sensor?

A: The SCD41-D R2 sensor operates within a temperature range of -10°C to 60°C, suitable for a wide range of indoor environments and applications.

Technical Specifications

CO2 measurement range:
400 - 5000 ppm
+-40 ppm
Response time:
60 s
Supply voltage:
2.4 - 5.5 V
Average supply current:
3000 uA
Max. supply current:
205000 uA
Package size (LxWxH):
10.1 x 10.1 x 6.5 mm3
Target Gas:
Carbon Dioxide CO2

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.