DFRobot SEN0678 Gravity STCC4 Carbon Dioxide (CO2) Sensor
DFRobot SEN0678 Gravity STCC4 Carbon Dioxide (CO2) Sensor is a highly cost-effective, multi-functional air quality monitoring module designed for rapid hardware integration and scalable deployments. Utilizing the Sensirion STCC4 high-performance gas sensing chip based on the Thermal Conductivity (TC) measurement principle, this sensor delivers stable and reliable CO2 concentration readings. Its standout feature is the combination of extreme affordability with 3-in-1 measurement capabilities, integrating an onboard SHT40 sensor to provide simultaneous CO2 (with a measurement range of 400ppm to 5,000ppm and an accuracy of ±[100ppm +10%]), ambient temperature, and humidity data.
Operating on a wide 3.3V to 5V voltage range and communicating via a standard I2C interface, it eliminates complex wiring and soldering. This feature makes the DFRobot SEN0678 highly suitable for deploying multi-node indoor air quality monitoring networks, building automation systems, smart home setups, and educational STEM projects where budget constraints, compact size, and ease of use are primary considerations.
Features
- High measurement accuracy based on the TC principle for stable and reliable data
- Low power consumption that is suitable for battery-powered or always-on systems
- Compact size makes it easy to integrate into space-constrained and modular designs
- Digital output with an I2C interface and strong anti-interference capability
- Plug and play with the standard Gravity interface, no soldering required
Applications
- Indoor air quality monitoring - real-time CO2 detection to improve comfort in homes and offices
- Smart home systems - work with ventilation, air conditioning, and windows for automated airflow control
- Building and classroom monitoring - ensures air safety in high-occupancy environments
- Environmental monitoring and Internet of Things (IoT) - suitable for various IoT air quality nodes
- Educational and experimental projects - intuitive demonstration of CO2 concentration changes for STEM education
Specifications
- 3.3VDC to 5.0VDC supply voltage
- +10°C to +40°C operating temperature
- 20% to 80% operating relative humidity (RH), non-condensing
- 400ppm to 5000ppm CO2 measurement range
- ±(100ppm +10% of reading) CO2 accuracy
- 20s response time
- Operating current
- 4.2mA peak
- 950μA continuous measurement
- 100μA single-shot mode (10s sampling interval)
- 1μA deep sleep
- Gravity I2C interface
Kit Contents
- Gravity STCC4 CO2 sensor
- Gravity 4-pin cable
Related Products
DFRobot Gravity Series
Ideal for smart homes, robots, industrial manufacturing and environmental monitoring.
Sensirion Sensor de CO2 miniatura STCC4
Provides direct measurement of CO2 in an ultra-small package size of 4mm x 3mm x 1.2mm (L x W x H).