Sensors That Make Buildings Smart!
AirTest CO2 Control Brochure
The Free AirTest CO2 Ventilation Calculator Tool
Suggested CO2 Sequence Of Operation
CO2 In School Classrooms
CO2 Reference Library
Reduce Over Ventilation And
Energy Waste with CO2
Background on CO2 for Ventilation Control
Explanation of CO2 sensor self calibration for TR9220 and TR9290
Why" Length Matters" for CO2 meansurement (TR9220, TR9290)
Technical background on CO2 DCV
Using CO2 to measure combustion fumes
Using CO2 to control smoking in hospitality venues
Assessing buildings for CO2 retrofit
CO & energy savings case studies
AirTest CO2 energy analysis software
AirTest Training Center

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Model EE80 Model EE80 Model EE85
Wall Mount with Display Wall Mount without Display Duct Probe Mount


  • Commercial buildings
  • Schools & universities
  • Retail
  • Theaters, auditoriums, gyms, churches
  • Hospitality venues
  • All buildings operated 24/7


Key Features

  • Attractive Euro-design enclosure has been selected for use in the Metropolitan Museam of Art in New York.
  • Dual beam design, provides an internal means of self calibration that is not dependant on ambient CO2 levels reaching a low baseline for self calibration.
  • Infrared sensor operates on 30 second flash rate which significantly reduces heat output of the sensor (typical for other sensors is 3-5 second flash rate). The lower heat output means that this is the only CO2 sensor available that can accurately measure temperature and humidity in the same device.
  • No calibration or maintenance needed for this transmitter over its 15 year rated life.
  • Now also available with LonWorks® communication capability as a LonMark® Certified product.


Related Products

  • The PT9250 Handheld CO2 monitor can be used in comissioning CO2 sensors and in characterizing ventilation rates. It can also be used to estimate potential energy savings in CO2 retrofits (see "Assessing Buildings for CO2 Retrofits" to left).




Model EE80

Wall Mount, Dual Beam CO2 Transmitter

  • Measures: 0-2,000 ppm CO2 (0-5000 ppm range also available)
  • CO2 Accuracy: ± 50 ppm + 2% of reading
  • Temp Accuracy: ± 0.54F (± 0.3C)
  • RH Accuracy@ 68F (20C): ±3% (30-70%RH), ±5% (10...90%RH) (Only avalible in V output version)
  • RH Accuracy:
  • Power: 24 VAC
  • CO2, T Output: 0-10 V, 0-5 V, 4-20mA (Specify when ordering)
  • CO2, T & RH: 0-10 V, 0-5 V (Specify when ordering)

Datasheet Selection Guide Manual & Commisioning Guide
LonMark® Certified Catalog Listing
LonWorks XIF/DRF Files


Model EE85

Duct Mount Probe, Dual Beam CO2 Transmitter

  • Measures: 0-2,000 ppm CO2 (0-5000 ppm range also available)
  • CO2 Accuracy: ± 50 ppm + 2% of reading
  • Power: 24 VAC
  • CO2 Output: 0-10 V, 0-5 V, 4-20mA (Specify when ordering)
  • Aspiration probe design, with easy to install flange mounting that allows adjustment of probe depth.
  • 8" probe length standard


Datasheet Selection Guide Manual & Commisioning Guide


Published: February 16, 2004 Last Updated: September 25, 2008