Ventostat T8041/T8042 CO2 Duct Probe Transmitter

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.

Telaire T8041/T8042 Ventostat