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SCD40 I2C CO₂ Temperature & Humidity Sensor Breakout Module - 7Semi
SCD40 I2C CO₂ Temperature & Humidity Sensor Breakout Module - 7Semi
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- Delivers precise measurements with ±(50 ppm + 5%) accuracy, ideal for air quality monitoring.
- Measures CO₂, temperature, and humidity in one compact module for a complete environmental profile.
- Consumes only 17 mA (at 5s interval) or 0.5 mA (at 5min interval), perfect for battery-powered IoT projects.
- Detects CO₂ from 400 to 2000 ppm, making it suitable for indoor air quality and ventilation control.
- Fully calibrated and ready to use with I2C support for Arduino, Raspberry Pi, ESP32, and more.
- Small footprint makes it easy to embed in smart home, industrial, or wearable tech applications.
SCD40 I2C CO₂ Temperature & Humidity Sensor Breakout Module - 7Semi
The 7Semi SCD40 is a compact sensor breakout based on Sensirion’s advanced photoacoustic NDIR technology. It accurately measures CO₂ concentration from 400 ppm to 40,000 ppm, along with ambient temperature and humidity. Ideal for air quality monitoring, HVAC systems, and IoT applications. It communicates over the I²C interface and is compatible with most microcontrollers. With low power consumption, long-term stability, and minimal recalibration requirements, the SCD40 is well-suited for portable and embedded systems requiring reliable environmental data.
Features
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Photoacoustic CO₂ Sensing: Uses advanced photoacoustic infrared technology for high-precision CO₂ measurement.
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3-in-1 Environmental Monitoring: Simultaneously tracks CO₂ levels, temperature, and humidity for a complete atmospheric overview.
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Wide CO₂ Detection Range: Measures concentrations from 400 ppm to 40,000 ppm, with optimal accuracy in the 400–2000 ppm range.
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High Accuracy: Offers a precision of ±(40 ppm + 5%), making it ideal for critical monitoring applications.
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Low Power Consumption: Consumes only 17 mA at 5s intervals and 0.5 mA at 5-minute intervals, perfect for battery-powered projects.
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Plug-and-Play Ready: Factory-calibrated and ready for immediate use—no manual calibration required.
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I2C Interface: Compatible with Arduino, Raspberry Pi, ESP32, STM32, and other popular microcontrollers via I2C.
- Compact Design: Small, robust module fits easily into embedded systems and space-limited enclosures.
SCD40 carbon dioxide sensor Breakout I2C Arduino Connections
Package Includes
1 x 7Semi SCD40 I2C CO₂ Temperature & Humidity Sensor Breakout Module
Specifications
| Specification | Details |
|---|---|
| Target Gas | CO₂ (Carbon Dioxide) |
| Measurement Range | 400 ppm – 2000 ppm |
| Accuracy | ± (50 ppm + 5% of reading) |
| Interface | I2C |
| Other Sensing | Integrated Temperature and Humidity Sensor |
| Operating Voltage | 3.3V |
| Dimensions (LxWxH) | 3 x 2.2 x 0.8 cm |
| Weight | 5 gm |
Shipping & Returns
Shipping & Returns
- All orders confirmed before 3 pm IST are shipped on the
same day, barring rare pickup delays on holidays or disturbances - Delivery time in Metro cities is 1-3 days, Others it is
3-7 days. It varies based on location, reliant on courier services - Return window: 7 days from receipt unless stated
otherwise. No refunds/replacements after - Returns only for non-working/damaged products are accepted
- Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
- Refunds are processed within 3-4 working days post inspection and approval.
For more details, please check our Shipping and Return Policy
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ADDITIONAL RESOURCES
- SCD40 Datasheet
- User Guide and Sample Code etc.
- 7Semi SCD40 Breakout 3D Step File
- Sensirion I2C SCD4x Arduino Library (Library for the SCD4X sensor family by Sensirion Enables you to use the SCD40 and SCD41 sensors via I2C.)