Description
The 7Semi SCD41 High Accuracy CO₂, Temperature and Humidity Sensor Breakout is a compact, high-precision sensing module designed for advanced indoor air-quality monitoring. It integrates a photoacoustic NDIR CO₂ sensor with built-in temperature and humidity measurement and communicates through I²C, making it suitable for smart-home automation, HVAC systems, environmental sensing, and IoT applications needing highly reliable CO₂ data.
Technical Specifications:
- Target Gas: CO₂ (carbon dioxide)
- CO₂ Measurement Range: 400 to 5,000 ppm
- CO₂ Accuracy: ±(40 ppm + 5% of reading) typical
- Temperature Accuracy: ±0.8 °C typical
- Humidity Accuracy: ±6% RH typical
- CO₂ Response Time: ~60 seconds (τ63%)
- Supply Voltage: 2.4 V to 5.5 V
- Interface: I²C digital communication
- Operating Temperature: –10 °C to +60 °C
- Sensor Size: Approximately 10.1 × 10.1 × 6.5 mm
- Typical Current Consumption: Designed for low-power embedded systems
Features:
- High-accuracy photoacoustic NDIR CO₂ sensing technology
- Integrated temperature and humidity measurement
- Factory calibrated for ready-to-deploy performance
- Easy to integrate using the I²C digital interface
- Compact breakout format suitable for prototyping and product development
- Ideal for high-precision indoor air-quality monitoring applications
Applications:
- Indoor air-quality monitoring and control systems
- Smart HVAC and ventilation automation
- IoT sensing nodes and environmental telemetry
- Portable and embedded CO₂ monitoring instruments
- Research, laboratory, and educational systems
- Air-purifier and filtration system performance tracking