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CO2 Sensor

For use with Titon HRV Q Plus Range (B and B2 models only)


The Room Sensor CO2 is used to monitor air quality inside buildings and effectively control ventilation (HVAC) systems according to current levels of internal air quality.

The sensor measures concentration of carbon dioxide (CO2) in air. It can be effectively used in offices, classrooms, shopping centres, homes, restaurants, fitness centres, commercial buildings, etc.

The measuring of CO2 is based on the principle of infrared radiation attenuation dependence on the CO2 concentration in the air (NDIR).

Built-in auto-calibration function ensures very good long term stability.

The sensor has one analog output for the actual concentration of CO2.

Ventilation, air conditioning and heat recovery units can be directly controlled based on the output signal of the sensor in very efficient way.

The trigger level of CO2 concentration output relay can be set by a rotary element.

Current air quality can be easily checked by three LED indicators. When ambient light is dimmed, the indicators turn off automatically to not disturb you when falling asleep.

Features & Benefits

  • Measures CO2, optical principle NDIR
  • LED indication with automatic turn off according to ambient light (at night)
  • Analog voltage output 0-10V
  • Output relay NO/C
  • Maintenance or calibration not required during operation
  • Long-term stability
  • Expected lifetime >10 years
  • For B and B2 models only
  • Colour: Front – White, Base – Grey

Technical Information

Technical Information

Drawing and Dimensions


Part Number – TP541

Parameter Value Unit
Supply voltage range 12 – 35 V DC
12 – 24 V AC
Consumption max 1.5 W
CO2 measuring range 1) 400 – 1000 ppm
400 – 2000
400 – 5000
CO2 accuracy 2)
– for ranges 400 – 1000 and 400 – 2000 ppm ± 40 ppm + ±4 % of reading
– for range 400 – 5000 ppm ± 60 ppm + ±4 % of reading
CO2 relay – hysteresis 5 % from range (100ppm/250ppm)
CO2 rate rise max 1 min
CO2 step response (90 %) 80 s
Voltage output 3) 0 – 10 V DC
Max. switching voltage 250/30 V AC / V DC
Max. switching current 5/5 A AC / A DC
Working humidity non condensing 0 – 95 % RH
Working temperature 0 to +50 °C
Storage temperature -20 to +60 °C
Expected lifetime 10 years
Ingress protection IP20
Dimensions 90x80x31 mm

1) Measuring range can be chosen by jumper setting.
2) At 15 – 35 °C, 0-80% RH.
3) Minimum achievable output value corresponds to minimum value of the measuring range.



Manuals and Documentation

Product Manual - CO2 Sensor

1.28 MB (English)

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Ventilation Systems Catalogue

18.88 MB (English)

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CO2 Sensor - Catalogue Page

247.6 KB (English)

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CE Certificate of Conformity

Room CO2 Sensor 0-10Vdc – Certificate of Conformity (TP541)

134.68 KB (English)

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Room CO2 Sensor 0-10 Vdc - Certificate of Conformity (TP541-392)

102.01 KB (English)

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