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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 CO? 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 CO? 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 CO? Sensing: Uses advanced photoacoustic infrared technology for high-precision CO? measurement.
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3-in-1 Environmental Monitoring: Simultaneously tracks CO? levels, temperature, and humidity for a complete atmospheric overview.
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Wide CO? 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
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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Package Includes
1 x 7Semi SCD40 I2C CO? Temperature & Humidity Sensor Breakout Module
Specifications
| Specification | Details |
|---|---|
| Target Gas | CO? (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 |
