The Siemens QPM2100 is a duct-mounted air quality sensor designed for accurate monitoring of carbon dioxide (COâ‚‚) concentration in HVAC systems. It uses advanced non-dispersive infrared (NDIR) technology to deliver reliable measurements for demand-controlled ventilation, ensuring energy efficiency and healthy indoor air quality.
- Measurement Range: 0 – 2000 ppm CO₂
- Sensor Type: NDIR (Non-Dispersive Infrared)
- Output Signal: Selectable 0–10V or 0–5V (factory default: 0–10V)
- Power Supply: 24V AC/DC
- Power Consumption: ≤1.7 VA
- Protection Rating: IP54 – suitable for duct installation
- Mounting: Duct mounting with supplied flange and M16 cable gland
- Maintenance: Calibration-free operation
- Operating Temperature Range: Typically 0°C to 50°C
- Application: Ideal for demand-controlled ventilation in commercial, institutional, and industrial environments







