Siemens S55720-S454 Air Quality Sensor for CO2, Temperature, +50°C Max

This air quality sensor is an advanced device designed for monitoring indoor environments. It is equipped with maintenance-free CO2 sensing technology based on non-dispersive infrared (NDIR) measurement, ensuring reliable CO2 and temperature readings. The compact dimensions of 90 x 100 x 36mm make it suitable for various installations, while its operational

• Maintenance-free CO2 sensing element provides long-term accuracy
• No recalibration required, saving time and costs
• Dual signal outputs allow for easy integration in systems
• Accurate temperature measurement at ±0.5 K under standard conditions
• Designed for energy-efficient demand-controlled ventilation systems
• Compact design facilitates flexible mounting options and straightforward installation

• Used in HVAC air quality solutions for optimal indoor comfort
• Ideal for environmental monitoring in residential and commercial spaces
• Effective in air conditioning systems to control air quality
• Suitable for indoor air quality monitoring to ensure a healthy environment

The sensor employs NDIR technology, which measures CO2 concentrations by detecting infrared light absorbed by CO2 molecules. This method ensures precise readings without the need for recalibration.

It requires a power supply of AC 24V ±20% or DC 15...35V, connected to a transformer designed for safety extra low-voltage applications, ensuring optimal performance.

It should not be installed in areas exposed to direct sunlight or heat sources, as this may affect its measurement accuracy. Proper placement is crucial for reliable readings.