Siemens QPA 2002 Room Air Quality Sensor


Siemens QPA 2002 Room Air Quality Sensor is a device used to measure the  Co2 and VOC  in indoor environments .It is often used in commercial and industrial buildings, as well as in public spaces, to help ensure that adequate ventilation is provided and to help maintain a comfortable and healthy indoor environment.
Applications: Paint Booth, Confined Space Entry, Hazmat/Homeland Security, Industrial Hygiene and Confined Space, Airlines (wing-tank passage), Landfills, Oil and Gas, Chemical Plants, Hotels, Schools, Ambient Workplace, Indoor Air Quality Monitoring, Hospitals.

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Siemens QPA 2002 Room Air Quality Sensor utilizes non-dispersive infrared (NDIR) technology to detect the levels of CO2 in the air. It has a range of 0-2,000 parts per million (ppm) and provides a 0-10V output signal that can be used to control HVAC systems or other building automation systems. The sensor is designed to be easy to install and can be used in a variety of indoor environments.
Features of Siemens Room Air Quality Sensor:

  • Maintenance-free CO2 sensing element (depending on the type) based on optical infrared absorption measurement (Non-Dispersive Infrared)
  • This Air Quality meter has CO2 temperature (active or passive) and CO2 humidity-temperature multisensor
  • No recalibrations required

Additional information

Weight 1 kg


Model No

QPA 2002

Measuring Parameters

VOC, Carbon Dioxide

VOC Measuring Range

0…100% VOC

CO2 Measuring Range

0…2000 ppm

CO2 Accuracy

±(50 ppm + 2 % of measured value)

Ambient Temperature

0…50 °C

IP Rating

IP 30

Operating Voltage

AC 24 V or DC 15 to 35 V

Signal inputs and outputs

DC 0 to 10 V or DC 0 to 5 V


90 x 100 x 36 mm (WxHxD)


150 gms

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Siemens QPA 2002 Room Air Quality Sensor

Siemens QPA 2002 Room Air Quality Sensor