Dwyer Instruments 1920-0 Low Differential Pressure Switch 0.15"-0.5" WC

The Dwyer Instruments 1920-0 Low Differential Pressure Switch is a small and reliable product used for measuring low-pressure differentials in HVAC systems, more precisely in the range of 0.15” WC to 0.5” WC. This switch works based on differential pressure, usually across two points, upstream and downstream of filters or fans to check the airflow and system efficiency. It is particularly useful when it is applied in HVAC systems. The advantages of the include its capability to identify clogged filters, set off defrosting procedures, and regulate variable air volume systems to optimize energy usage and to provide comfort to indoor conditionss.