Starting at $396.49 Starting at $317.19



  • CO2 Measurement Range
    • 0 to 2000 ppm
  • Accuracy (T8100/T8300)
    • ±30 ppm or 3% of reading 400-1250 ppm
    • ±30 ppm + 5% of reading 1250-2000 ppm
  • Accuracy (T8200)
    • 75 ppm or 10% of reading (whichever is greater)
  • 0-10VDC or 4-20mA (no relay outputs)
  • Single or dual channel models
  • BACnet output versions
  • CO2, humidity and temperature models
  • Lifetime CO2 calibration guarantee when using ABC Logic™
  • Easy Installation
  • 2 case sizes available
    • Standard: 81.4mm x 116.4mm
    • Mini: 81.4mm x 86.4mm
  • FCC and CE certified


The Telaire Ventostat series carbon dioxide detector is a commercial-grade unit designed for Demand Controlled Ventilation (DCV) in buildings. This approach, which uses CO2 levels as an indicator of occupancy, allows ventilation based upon actual occupancy while still maintaining ASHRAE recommended per-person ventilation rates. By using any model of Telaire Ventostat Series carbon dioxide detector, over-ventilation of buildings can be reduced to save energy costs while still maintaining the highest standards of air quality.

Typical applications for the Telaire Ventostat 8000 series carbon dioxide detector include office buildings, conference rooms, schools, retail space, restaurants, gymnasiums, and movie theaters.

The Telaire Ventostat series carbon dioxide detector is available in three configurations:

Telaire Ventostat T8100

T8100 models use a single channel sensor using Telaire patented ABC Logic for lifetime calibration. Single channel sensors are used in spaces where there is not full-time occupation (most applications).

Telaire Ventostat T8200

T8200 models use a dual-channel optical system and three-point calibration process for enhanced stability, accuracy and reliability. Used in applications where there is fulltime occupation 24 hours a day.

Telaire Ventostat T8300

T8300 models use a single channel sensor with pitot tube kit for duct measuring of CO2. ABC Logic enabled.

In addition to differing models, the Ventostat also has a number of options available including enclosure size, scrolling display, humidity measurement, 0-5V output, BACnet output and enclosure color.


This product can be used in the following applications:

In Stock

Part Number Price Available
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