Sensirion SCD41-D-R2 CO₂ Gas Sensor, Range: 400 ppm~5000 ppm, I2C Interface, LGA-20 Package
The Sensirion SCD41-D-R2 is a high-precision, second-generation CO₂ sensor module featuring an integrated SHT4x for temperature and humidity compensation. It communicates via I2C and is designed for seamless integration into 3.3V or 5V digital systems, including Arduino, Raspberry Pi, and ESP32 platforms, for accurate environmental monitoring.
Features
- High-accuracy CO₂ measurement from 400 ppm to 5000 ppm (±5%).
- Integrates Sensirion’s PASens® photoacoustic NDIR and CMOSens® technology.
- On-chip signal compensation via built-in SHT4x temperature and humidity sensor.
- Wide operating voltage range from 2.4V to 5.5V with I2C digital interface.
- SMD-compatible LGA-20 package for space-constrained and portable designs.
Out of stock
The SCD41-D-R2 represents Sensirion’s advanced second-generation CO₂ sensing platform. It utilizes a photoacoustic Non-Dispersive Infrared (NDIR) principle, enhanced by proprietary PASens® and CMOSens® technologies, to deliver stable and accurate readings in a miniaturized form factor. This approach eliminates the need for traditional optical components, reducing size and power consumption.
The module includes a fully integrated SHT4x sensor for precise temperature and humidity measurement, enabling on-chip environmental compensation that ensures high data integrity across varying conditions. Its SMD-compatible LGA-20 package and wide 2.4V to 5.5V supply range make it ideal for direct integration into battery-powered, portable devices and complex digital systems requiring reliable air quality data.
Additional Information
| Weight | 0.05 kg |
|---|---|
| Dimensions | 1.5 × 1.1 × 0.4 cm |













