Amphenol Telaire T8000 Series Ventostat Wall Mount CO2, Humidity & Temperature Transmitter

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The Telaire Ventostat 8000 Series represents a full range of wall mount carbon dioxide, humidity and temperature transmitters with display options plus active humidity and temperature outputs. The Telaire 8000 Ventostat Series provides controlled ventilation with easy installation and a clean, modern look that suits most indoor environments.


  • Patented, Absorption Infrared Gas sensing engine provides high accuracy in a compact low cost package
  • Patented ABC Logic™ self-calibration system eliminates the need for manual calibration in most applications
  • Lifetime CO2 calibration guarantee when using ABC Logic™
  • Mounting plate with two-piece terminal blocks provide quick, easy wiring
  • Gas permeable, water resistant CO2 diffusion filter prevents particulate and water contamination of the sensor
  • Locking screw secures cover and sensor to the mounting bracket for tamper resistance
  • Dual simultaneous analog outputs (V & mA) available for CO2
  • Sensors are shipped factory calibrated
  • Temperature sensor on all models
  • Modern enclosure with customized branding available
  • CO2, humidity and temperature models
  • Two-piece design allows unit to be replaced without the need for rewiring
  • Accessory UIP software for making custom setting changes
  • Analog, BACnet versions available

Data Sheet





CO2 Measurement Range

0 ppm = 0 V, 4 mA, 0-2000 ppm

CO2 Accuracy

±30 ppm or 3% of reading (whichever is greater)*

Temperature Dependance

0.2% FS per °C (±0.11% per °F)


<2% of FS over life of sensor (15 years), <5% of FS or <10% reading annual over life of sensor (10 years)

Pressure Dependence

0.135% of reading per mm Hg

Operating Conditions

0 to 95% RH, non-condensing, 32°F to 122°F (0°C to 50°C)

Storage Conditions

-40°F to 158°F (-40°C to 70°C)

Thermistor Accuracy

±1°C (15°C to 35°C)

RH Sensing Element

Capacitive polymer sensor

RH Range

0% to 99% RH (non-condensing)

RH Accuracy (25°C)

±2.5% RH (20% to 80% RH), ±3.5% RH (80% RH)

Active Temperature Accuracy/Range

±0.8°C @ 22°C, 32°F to 122°F (0°C to 50°C)