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Veris CW2XA2K
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Veris CW2XA2K Wall Air Quality Sensor

Sensor, CO2, Wall, Humidity w/2% Accuracy, Temp, 10K Thermistor w/11K Shunt

  • Brand Name: Veris
  • Veris Part#: CW2XA2K
  • Est. Shipping Date: loading
CO2 Measurement Accuracy      :      ±30 ppm ±3% of measured value
CO2 Measurement Range      :      0 to 2000/5000 ppm (selectable)
CO2 Measurement Repeatability      :      ±20 ppm ±1% of measured value
CO2 Measurement Resolution      :      1 ppm
CO2 Response Time      :      <60 seconds for 90% step change
CO2 Sensor Type      :      Non-dispersive infrared (NDIR), diffusion sampling
Color      :      Matte White
Electrical Wiring Size      :      Screw terminals, 18-24 AWG
Enclosure Material      :      High impact ABS plastic
Humidity Calibration Certificate      :      Replaceable RH element available in 1% & 2% with NISTcalibration certificate
Humidity Measurement Accuracy      :      ±2% from 10 to 80% RH @ 25°C (77 °F)
Humidity Measurement Linearity      :      Included in accuracy specification
Humidity Measurement Range      :      0 to 100% RH
Humidity Measurement Resolution      :      0.1% RH
Humidity Sensor Type      :      Thin-film capacitive, replaceable
IP Protection      :      IP20
Input Specifications      :      Class 2; 20 to 30 Vdc, 24 Vac, 50 to 60 Hz
Measurement Type      :      CO2 / Humidity / Temperature
Operating Humidity      :      0 to 95% RH non-condensing
Operating Temperature      :      0 to 50 °C (32 to 122 °F)
Output Specifications      :      Selectable 4 to 20 mA, 0 to 5 V, 0 to 10 V
Outputs      :      Analog
Standards EMC      :      EN61000 Series - industrial immunity
Standards      :      CE, UL 916, RCM, ICES-003. REACH, RoHS
Temperature Measurement Range      :      0 to 50 °C (32 to 122 °F)
Temperature Measurement Resolution      :      0.1 °C (0.1 °F)
Temperature Sensor Type      :      Thermistor, 10K with 11K Shunt

The Veris CW2 Series of air quality sensors for living space is a flexible multi-sensor platform for use with various brands of BAS controllers designed to accept 4 to 20mA, 0 to 5Vdc, 0 to 10Vdc, and various thermistor outputs. CW2XA2K sensors feature no-logo on the faceplate. CO2 and temperature sensors are included with all CW2 Series air quality sensors.


  • CO2, Humidity, and Temperature sensor
  • High CO2 accuracy: NDIR Non-dispersive infrared (NDIR), diffusion sampling
  • CO2 Accuracy: ±30 ppm ±3% of measured value
  • Thermistor, 10K with 11K Shunt Temperature sensor
  • Easy to install: snap on covers with security screw simplify installation and service
  • Easy Maintenance: Self Calibrating
  • Field Selectable outputs
  • Lower installation and service costs with multi sensor platform



  • pdf Datasheet https://www.veris.com//ASSETS/DOCUMENTS/ITEMS/EN/CW2 Analog_d0624.pdf
  • pdf Installation guide https://www.veris.com//ASSETS/DOCUMENTS/ITEMS/EN/CW2 Analog_i0m2.pdf