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Upgrade your indoor‑air‑quality projects with the TENSTAR SCD40 / SCD41 Gas Sensor Module. Designed for precise detection of CO₂, temperature, and humidity, this compact I²C‑compatible sensor operates from 2.4 V to 5.5 V, making it perfect for Arduino, Raspberry Pi, ESP32, and other micro‑controller platforms.
Key Highlights
- Dual‑model flexibility: works with both SCD40 and SCD41 sensor chips
- Accurate CO₂ measurement range: 400 ppm – 10,000 ppm (SCD40) / 0 ppm – 10,000 ppm (SCD41)
- Integrated temperature (‑40 °C – 125 °C) and relative humidity (0 % – 100 % RH) sensing
- Low power consumption – ideal for battery‑operated and IoT devices
- Standard I²C interface (0.8 MHz max) for fast, reliable data transfer
- Wide operating voltage: 2.4 V – 5.5 V, compatible with 3.3 V and 5 V systems
- Compact 20 mm × 20 mm footprint for space‑constrained designs
Why Choose TENSTAR SCD40 / SCD41?
Built with TENSTAR’s proven quality standards, this sensor module delivers long‑term stability and repeatable performance. Its factory‑calibrated CO₂ algorithm eliminates the need for external calibration gases, saving you time and money.
Technical Specifications
- Supply Voltage: 2.4 V – 5.5 V
- CO₂ Accuracy: ±(30 ppm + 3 % reading) for SCD40, ±(30 ppm + 3 % reading) for SCD41
- Temperature Accuracy: ±0.2 °C
- Humidity Accuracy: ±2 % RH
- Communication: I²C (address 0x62), optional UART on SCD41
- Response Time: CO₂ – < 2 s, Temperature/Humidity – < 0.5 s
- Operating Temperature: –40 °C – 85 °C
- Dimensions: 20 mm × 20 mm × 5 mm (module)
Easy Integration
The TENSTAR SCD40 / SCD41 module comes with a ready‑to‑use breakout board, pre‑soldered pins, and comprehensive libraries for Arduino, ESP‑IDF, and Python. Start measuring indoor air quality within minutes:
- Plug‑and‑play with standard 4‑pin I²C header
- Open‑source driver code and example sketches included
- Full documentation and technical support from TENSTAR
Ideal Applications
Perfect for smart home ventilation, HVAC monitoring, greenhouse climate control, air‑purifier feedback loops, and any IoT project that requires reliable CO₂, temperature, and humidity data.
Price: Original price was: $ 40.57.$ 19.48Current price is: $ 19.48.