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Telaire Ventostat T8100-E-HD
Wall Mount CO2, Humidity and Temperature Transmitter

  • 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
  • Sensor is shipped factory calibrated
  • Temperature sensor
  • Humidity sensor
  • Modern enclosure with customized branding available
  • European Version, with display
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GE Telaire T8100 Shown

Ventilation is an important part of maintaining a comfortable, healthy, productive environment for people. Improper ventilation can have a negative impact on occupant health and performance, increase the risk from litigation, and/or waste energy. Demand-controlled ventilation using CO2 sensors prevents energy losses from over-ventilation while maintaining indoor air quality. The most energy savings potential is in buildings where occupancy fluctuates during a 24-hour period. Numerous organizations now require and/or recommend CO2-based ventilation control in different commercial HVAC applications. Some utility companies also offer rebates to building owners for installing CO2 sensors.

Telaire Ventostat T8100-E-H Wall Mount CO2, Humidity and Temperature Transmitter is used to control a specific area such as a conference room, classroom, meeting hall, etc. The Telaire 8100-E-D is easy to install and have a clean, modern look that suits most indoor environments.

GE Telaire Ventostat T8100-E-H uses a single channel sensor using Telaire patented ABC Logic for lifetime calibration. Single-channel sensor isused in spaces where there is not full-time occupation (most applications).

CO2 ABC Logic Self Calibration
Telaire Ventostat T8100-E-H Wall Mount CO2, Humidity and Temperature Transmitter employes the patented ABC (Automatic Background Calibration) Logic self-calibration system. ABC Logic virtually eliminates the need for manual calibration in applications where the indoor CO2 level drops to outside levels during unoccupied periods (e.g. during evening hours). ABC Logic is a special software routine in the sensor that remembers the background readings for 14 consecutive evenings, calculates if there is a sensor drift, and then corrects for it.

With ABC Logic enabled, the sensor will typically reach its operational accuracy after 25 hours of continuous operation at a condition that is exposed to ambient reference levels. Sensors will maintain accuracy specifications with ABC Logic enabled, given that it is at least three times in 14 days exposed to the reference value and this reference value is the lowest concentration to which the sensor is exposed.

Sensing Method Non-dispersive infrared (NDIR) absorption
Gold-plated optics
Patented ABC Logic self calibration algorithm
Measurement Range 0-2000 PPM (0ppm = 0 V, 4 mA; 2000ppm=10/5V, 20mA)
5P models: 0-5000 PPM (0ppm = 0 V, 4 mA; 5000ppm=10/5V, 20mA)
Power Supply Requirements 18-30 VAC RMS 50/60 Hz
Power Consumption Typical 0.7 W at nominal voltage of 24V AC RMS
Temperature Dependence 0.2% FS per °C
Stability <2% of FS over life of sensor (15 years)
Pressure Dependence 0.135% of reading per mm Hg
Warranty One year on mechanical defects
Signal Update Every 5 seconds
CO2 Warm-up Time < 2 minutes (operational)
10 minutes (maximum accuracy)
Thermistor Type NTC 10 K W thermistor
Thermistor Accuracy ±1°C (15° to 35°C)
RH Sensing Element Capacitive polymer sensor
RH Accuracy (25°C) ±2.5% RH (20 to 80% RH)
±3.5% RH (80% RH)
Active Temperature Accuracy ±0.8°C @ 22°C
CO2 Accuracy ± 30ppm or 3% of reading shown, wichever is higher
Flammability Classification UL94 5VA
Ordering Information
Model Description Buy Online Price
T8100-E-HD Telaire T8100EHD Wall Mount CO2, Humidity, Temperature Transmitter (European Version, with display) Discontinued
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