The WisBlock CO₂ (CO2) Sensor Module – RAK12008 is designed for applications requiring precise monitoring of very high CO₂ levels.
At its core is the Sensirion STC31 sensor, capable of measuring 0–100 vol% CO₂ with a precision of ±0.5 vol%. Its compact 10 × 10 mm size makes it easy to integrate into space-constrained systems and difficult-to-reach areas.
Key Features & Benefits:
Wide Measurement Range: 0–100 vol% CO₂ detection
High Precision: ±0.5 vol% accuracy for reliable monitoring
Compact Size: 10×10 mm footprint fits in small enclosures
WisBlock Compatible: Plug-and-play integration with WisBlock Cores
Developer-Friendly: Tutorials and example code available for rapid deployment
This module is ideal for industrial processes, greenhouses, controlled-environment agriculture, and laboratory research where precise CO₂ concentration measurement is critical.
WisBlock CO2 Sensor Module – RAK12008 (Sensirion STC31)
The WisBlock CO₂ Sensor Module – RAK12008 uses the Sensirion STC31 sensor to measure CO₂ concentrations from 0–100 vol% with high accuracy, ideal for industrial and laboratory applications.


















