Ventostat CO2 Duct Probe Transmitter




CO2 Duct Probe Transmitter. Simple to install, easy to use, and ideally suited for large HVAC return ducts. Suits indoor air quality and energy conservation applications, offering accuracy and versatility at a great price. Remains accurate over the life cycle of the device using patented ABC logic selfcalibration system. CO2 sensors are recommended as part of the COVID-19 response and ventilation (AIRAH).

  • Simple installation (mounting hardware and instructions included)
  • Ideally suited for larger HVAC return air ducts
  • Offers standard 0-10 volt output 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
  • Gas permeable, water resistant diffusion filter prevents particulate and water contamination of the sensor
  • Lifetime calibration guarantee
  • Two probe lengths avaliable

Measurement Range: 0-2000 PPM factory calibrated

Duct Air Velocity: 0 to 1500 ft/min (0 to 450 meter/min)

Temp Dependence: 0.2% of full scale per ºC

Stability: <2% of full scale over the life of the sensor (10 years typical)

Accuracy*: ±40 ppm +3% of reading @ 22ºC (72ºF) when compared with a factory certified reference

Non-Linearity: <1% of full scale @ 22ºC (72ºF)

Pressure Dependence: 0.13% of reading per mm of mercury

Response Time: 3 minutes typical for a 90% step change at low duct speeds

Sampling Rate: Every two seconds, 25% duty cycle

Operating Conditions: Temperature – 0ºC to 50ºC (32ºF to 122ºF) Humidity – 0 to 95% relative humidity, noncondensing

Storage Conditions: -20ºC to 70ºC (-40ºF to 158ºF)

Note: The Telaire product line offers patented ABC Logic™ software for self-correction of drift to better than ±20 ppm per year. The system is virtually free of maintenance and typically has than 10 years.