Sensirion SCD40-D-R2 CO₂ Gas Sensor, Range: 400 ppm~2000 ppm, I2C Interface
The Sensirion SCD40-D-R2 is a miniature, high-precision CO₂ sensor module with an I2C digital interface, designed for seamless integration into 3.3V or 5V systems like Arduino, Raspberry Pi, ESP32, and industrial controllers for accurate indoor air quality monitoring.
Features
- High-precision NDIR CO₂ sensing with ±5% accuracy.
- Wide measurement range from 400 ppm to 2000 ppm.
- Digital I2C interface for easy system integration.
- Broad operating voltage range from 2.4V to 5.5V.
- Compact LGA-20 SMD package for space-constrained designs.
Out of stock
The SCD40-D-R2 from Sensirion is a state-of-the-art, photoacoustic NDIR (Non-Dispersive Infrared) sensor for carbon dioxide detection. It integrates the sensing element, signal processing, and a digital I2C interface into a single, compact LGA-20 surface-mount package. This design eliminates the need for complex external optics and provides a calibrated, temperature-compensated digital output.
Engineered for robustness, the sensor operates across an extended temperature range from -40°C to +85°C, ensuring reliable performance in demanding environments. Its low power consumption profile makes it ideal for battery-powered portable devices, smart HVAC systems, and IoT-based air quality monitoring stations where long-term, stable CO₂ measurement is critical.
Additional Information
| Weight | 0.05 kg |
|---|---|
| Dimensions | 1.5 × 1.1 × 0.4 cm |













