Shanghai Yixin

G8(S) Carbon Dioxide NDIR Infrared Gas Sensor

Model: G8(S)

Carbon Dioxide Non-Dispersive Infrared (NDIR, industrial-grade optical bench)

CO2 sensor for IAQ/HVAC: 400-2000 ppm extendable to 10000 ppm, with auto-calibration

G8(S) Carbon Dioxide NDIR Infrared Gas Sensor

The G8(S) is a Yixin smart miniature CO2 sensor based on Non-Dispersive Infrared (NDIR) with an industrial-grade optical bench — compact, accurate and with excellent long-term stability. It measures 400-2000 ppm (extendable to 0-10000 ppm) with 1 ppm resolution and accuracy of ±50 ppm ±3% of reading (at 25 ℃ / 101.3 kPa, measured 3 weeks after auto-calibration is enabled). It supports periodic auto-calibration and manual calibration, communicates over Modbus with UART and PWM interfaces, and is RoHS compliant. Ideal for embedding into CO2-related instruments and environmental equipment for indoor air quality, HVAC, green buildings and environmental monitoring.

Key Features

  • NDIR technology for accurate CO2 monitoring
  • Periodic auto-calibration and manual calibration (optional)
  • Industrial-grade optical bench with excellent long-term stability
  • RoHS compliant

Typical Applications

Indoor Air Quality (IAQ)Fresh Air & HVAC SystemsGreen BuildingsEnvironmental Monitoring

Calibration & Cross-Sensitivity

Supports periodic automatic baseline calibration (ABC) and manual calibration; factory-calibrated.