Adafruit SCD-30 - NDIR CO2 TEMP AND HUMIDITY SENSOR

The SCD-30 is an advanced Non-Dispersive Infrared (NDIR) sensor module that directly measures CO₂ levels without relying on indirect VOC estimates. It delivers high accuracy CO₂ measurements in the range of 400–10 000 ppm with ±(30 ppm + 3 %) accuracy, and includes built-in temperature and humidity sensing with ±0.5 °C and ±3 % RH accuracy. This makes it ideal for indoor air quality monitoring, greenhouse control, laboratory use, and ventilation optimization. The SCD-30 supports I2C and UART interfaces, and its STEMMA QT connectors allow easy plug-and-play connections without soldering.

Technical Details

• CO₂ accuracy: ±(30 ppm + 3 %)
• CO₂ range: 400–10 000 ppm
• Temperature accuracy: ±0.5 °C
• Humidity accuracy: ±3 % RH
• I2C and UART interface
• Operating voltage: 3.3–5.0 V
• STEMMA QT / Qwiic connectors
• Dimensions: 45 mm × 23 mm × 7 mm

Package Contents

• 1 × Adafruit SCD-30 CO₂, Temperature and Humidity Sensor (assembled and tested)
• Pin header for breadboard use

Link

Adafruit product page