s88 Sensor

The Senseair S88 is a compact, high-performance NDIR (Non-Dispersive Infrared) CO₂ sensor module designed for precise monitoring of carbon dioxide concentration in the air. Engineered with long-term stability and low maintenance in mind, the S88 is ideal for use in HVAC systems, indoor air quality monitors, demand-controlled ventilation (DCV), and building automation.

This sensor provides both analog and digital output (UART/RS485) for easy integration into a wide range of embedded systems. It features a robust design for challenging environments, ensuring reliable CO₂ measurement under varying temperature and humidity conditions.

• Detection Gas: Carbon Dioxide (CO₂)

• Measurement Range: 0–2000 ppm (up to 5000 ppm optional)

• Detection Principle: Non-Dispersive Infrared (NDIR)

• Accuracy: ±30 ppm ±3% of reading

• Response Time: <30 seconds (T90)

• Output Options:

  • Digital: UART, RS485 (Modbus)

  • Analog: 0–10V or 4–20mA (configurable)

• Power Supply: 12–24V DC

• Power Consumption: <1 W (typical)

• Operating Temperature: 0°C to +50°C

• Operating Humidity: 0%–95% RH (non-condensing)

• Calibration: Automatic Baseline Calibration (ABC) or manual

• Lifespan: ≥10 years under normal indoor conditions

• Applications:

  • HVAC control systems

  • Indoor air quality monitoring

  • Smart buildings and BMS

  • Demand-controlled ventilation (DCV)

  • Industrial environmental monitoring

  • Defining attributes

    • Compliant with ANSI/ASHRAE Standard 62.1-2022
    • Compliant with RESET grade B
    • Compliant with WELL Building Standard® (WELL v2™)
    • Compliant with California Energy Code