Reference: RBD-3587
Banner

The SCD40 is a digital carbon dioxide sensor module that measures CO₂ concentration using NDIR technology and also provides integrated temperature and humidity readings. It communicates via I2C and is suitable for indoor air quality monitoring, ventilation control, and environmental sensing applications.
The SCD40 is a digital carbon dioxide sensor module that measures CO₂ concentration using NDIR technology and also provides integrated temperature and humidity readings. It communicates via I2C and is suitable for indoor air quality monitoring, ventilation control, and environmental sensing applications.
NDIR-based CO₂ measurement
Integrated temperature and humidity sensing
Digital I2C communication interface
Stable long-term performance
Compact module size
Suitable for low-power operation
Sensor Model: SCD40
Sensor Type: CO₂, temperature and humidity sensor
CO₂ Measurement Range: 400 to 2000 ppm
CO₂ Accuracy: ±(40 ppm + 5% of reading)
Temperature Measurement: Integrated sensor
Humidity Measurement: Integrated sensor
Communication Interface: I2C
Operating Voltage: 2.4V to 5.5V
Interface Pins:
GND: Power ground
VDD: Power input
SCL: I2C clock
SDA: I2C data
Module Dimensions: Approximately 13.4 x 21.6 mm
Country of Origin: Made in China
Indoor air quality monitoring
Smart ventilation and HVAC systems
Smart home and office automation
CO₂ monitoring in classrooms and meeting rooms
Environmental data logging
Embedded and IoT projects
Supply power to VDD and GND within the specified voltage range
Connect SDA and SCL to the microcontroller I2C bus
Read CO₂, temperature, and humidity data via I2C commands
1 x SCD40 CO₂ sensor module
Designed for indoor air quality applications
Allow sensor warm-up time for stable readings
CO₂ range is limited to the specified measurement span
Ensure proper airflow around the sensor for accurate measurement
The SCD40 sensor module provides reliable CO₂ concentration measurement along with temperature and humidity sensing in a compact I2C module. It is well suited for indoor air quality monitoring and smart environmental control systems.
Specific References
Your review appreciation cannot be sent
Report comment
Report sent
Your report cannot be sent
Write your review
Review sent
Your review cannot be sent
Reference: RBD-3587
Reference: RBD-0163
Reference: RBD-2654
Reference: RBD-1042
Reference: RBD-4155
Reference: RBD-0424
Reference: RBD-4101
Reference: RBD-4092
Reference: RBD-4077
Reference: RBD-2385
Reference: RBD-4157
Reference: RBD-2806
Reference: RBD-3300
Reference: RBD-2745
Reference: RBD-2840
Reference: RBD-2683
Reference: RBD-3866
Reference: RBD-4087
Reference: RBD-4095
Reference: RBD-4101
Reference: RBD-4102
Reference: RBD-4123
The SCD40 is a digital carbon dioxide sensor module that measures CO₂ concentration using NDIR technology and also provides integrated temperature and humidity readings. It communicates via I2C and is suitable for indoor air quality monitoring, ventilation control, and environmental sensing applications.
check_circle
check_circle