Digital Control Systems’ AirSense™ Model 308 CO2 Sensor sets a new standard of affordability, ease of installation, and user-friendly operation.

The Model 308 employs our patented single button calibration, which makes field calibration a snap... but please do not be disappointed if you never need to use this easy calibration feature, because the Model 308 is engineered to give you the very best stability available in a low-cost PPM CO2 sensor.

Model 350 CO2 Monitor

The new AirSense™ Model 350 delivers reliable and hassle-free carbon dioxide (CO2) sensing. You know us as a leader in CO2-sensing, but the Model 350 is the strongest, most reliable, and most versatile product we have ever offered!

The Model 350 employs our patented single button calibration, which makes field calibration a snap... but please do not be disappointed if you never need to use this easy calibration feature, because the Model 350 is engineered to give you the best stability available in a low-cost PPM CO2 sensor!

Model 350 Brochure

Model 350 wall Installation

Model 350 Duct Installation

Model 351-355 Wall Installation

Model 351-356 Duct Installation

Model 310e CO2 Monitor

The AirSense™ Model 310e CO2 Monitor is specifically designed for the HVAC and greenhouse industry to accurately measure the parts per million (ppm) CO2 concentration levels typically found in inhabited spaces.

Percent models are also available for custom applications. The AirSense™ line of CO2 Monitors are easily installed and maintained.

Model 310e Brochure

Model 310e Manual

Model 310EN Manual* 

*(the Model310en is most easily identified by the prefix “M310en” on the unit’s serial number tag visible on the sensor circuit board when the cover is removed.)

Model 305e CO2 Monitor

Perfect for embedded applications and OEMs.

The minimally-featured but versatile AirSense™ Model 305e CO2 Sensor is ideally suited and designed for the OEM market.  This compact device typically measures a range of 0-2500 ppm CO2.

This compact CO2 sensor can be fit to a wide variety of packages and applications.   

Model 305e Brochure

Model 305e Manual

Cal-Kit

For the Professional.

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

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