DFRobot Gravity Infrared CO2 Sensor 400–5000ppm - PWM Output
The DFRobot Gravity Infrared CO2 Sensor is a high-precision NDIR-based module designed for Arduino and other 5V microcontroller systems. It provides accurate carbon dioxide concentration readings from 400 to 5000 ppm via a PWM output signal, ideal for indoor air quality monitoring and environmental data logging.
Features
- NDIR (Non-Dispersive Infrared) sensing principle for high accuracy and selectivity.
- Wide measurement range from 400 ppm (baseline) up to 5000 ppm CO2.
- PWM output signal for easy integration with Arduino, Raspberry Pi, and other microcontrollers.
- Low power operation with an average current draw of 40mA at 5V DC.
- Robust performance with temperature compensation and anti-water vapor interference.
Out of stock
This CO2 sensor utilizes mature NDIR technology, which measures the absorption of specific infrared wavelengths by carbon dioxide molecules. This method provides excellent selectivity, avoiding cross-sensitivity to other gases, and ensures long-term stability with an operational lifespan of up to 5 years. The integrated precision optical path and sophisticated signal conditioning circuit deliver reliable ppm readings.
The module operates within an industrial temperature range of -10°C to 50°C and up to 95% relative humidity (non-condensing). It features a fast preheat time of approximately one minute and a T90 response time under 120 seconds. The PWM output provides a duty cycle directly proportional to the CO2 concentration, simplifying data acquisition without complex analog-to-digital conversion.
Additional Information
| Weight | 0.04 kg |
|---|---|
| Dimensions | 6.9 × 3.7 cm |
