The Resideo AP5027-30 Airflow Switch is a stable device for measuring and controlling the airflow in HVAC systems. It is equipped with a differential pressure sensing mechanism with a setpoint range of 0.05" to 12" WC thus enabling accurate airflow measurement. It can work at 1/2 PSI and it has 1/4" compression fitting which makes it easy to retrofit into existing systems.

For an efficient and reliable HVAC system, the Resideo Airflow Switch Compressor » is a great choice for optimal system performance.

https://www.partshnc.com/ap5027-30-resideo-airsw-05-12-wcspdt-compr-fm »

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