Cleveland Controls AFS-442 SPDT Air Pressure Sensing Switch 0.05-2.0" WC

The Cleveland Controls AFS-442 Air Pressure Sensing Switch will be used to sense and react to the difference in air pressure in heating and cooling HVAC systems. It activates a single-pole, two-throw contact in a sensing range of 0.05" to 2.0" of water column to indicate airflow status to the control. It is used in furnaces, air handlers and ventilation equipment where airflow or draft needs to be monitored. It also maintains a better airflow for the appliance to operate in the system.