CWL carbon dioxide sensors maximize energy savings, while ensuring optimal ventilation. The sensors allow ventilation systems to be controlled by the amount of CO2 present in a space. The CWL Series detect fluctuations in CO2 levels and signal ventilation systems to provide an inlet of fresh air optimal for the space at a given time saving energy and ensuring tenant comfort. APPLICATIONS Controlling ventilation in response to occupancy Facilitating compliance with ASHRAE 62.1-2004 standard for air quality Office buildings, conference rooms, schools, retail stores, etc. Microprocessor design increases accuracy and reduces installation time Non-dispersive infrared technology (NDIR) repeatable to ±20 ppm ±1% of measured value Innovative self-calibration algorithm...easy to maintain 5-year calibration interval (recommended) Low ambient sensitivity Field-selectable outputs for operation flexibility Revolutionary direct duct mounting design Integrated transducer and probe...eliminates the need to install a separate pick-up tube Snap-on faceplate...no screws required, making installation and service a snap Adjustable duct probe...simplifies installation and airflow monitoring CO2, humidity, and temperature sensing all in one compact device...fewer units to buy and install