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Digital Control Systems

6475 SW Fallbrook Place Beaverton, OR 97008 USA

Toll Free: 1-877-468-6337

Phone: (503)246-8110

Fax: (503) 246-6747 


CO2 Sensors & CO2 Monitors


Model 400 CO2 Monitor




The AirSense™ Model 400 CO2 Sensor is a laboratory grade device designed to measure and control percent-range CO2 levels.  Perfect for applications such as CO2 Incubators, this IR CO2 Sensor delivers the precise results expected in applications such as tissue culture and pathology.

Model 400 Brochure

Model 400 Manual


Model 300Series CO2 Monitor



The AirSense™ Model 300 Series CO2 Sensor is designed for the OEM market. The Model 300 is ideal for measuring CO2 in high concentration (1-100%) environments. This very popular and reliable product is available in a wide range of configurations, offering either an attached or a remote IR sensor. Hermetically-sealed sensors are also available for use in high humidity environments. 

Model 300 Brochure

Model 300 Manual


CO2 Monitor Cal-Kit


The AirSense™  Calibration Kit is designed for the HVAC Professional who wants to check or to recalibrate CO2 monitors in the field. The Calibration Kit contains a 17 liter cylinder of the gas you specify (2000 ppm or 5000 ppm CO2), a shut-off valve and regulator for the gas cylinder, a four-digit LED display, tubing, fittings, and other accessories are included.   

CO2 Monitor Cal-Kit Brochure




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DCS Prides Itself on Flexible Cost Effective Solutions to Your Application


Your custom DCS module will always arrive completely configured to your target application. No programming or other set-up is necessary, just wire it in and turn it on.


Indoor Air Quality:
A guide for building owners and facility managers. Provides information about diagnosing indoor air quality problems. "Provides information about diagnosing indoor air quality problems."

IAQ for Schools:
Download a complete, practical plan to improve the air quality in schools.

Improve IAQ, While Saving Energy.
The use of CO2 sensors can save more than $1 per square foot of energy cost annually.