Dwyer Instruments 1831-1-RA-S Low Differential Pressure Switch M/R 2.5-9" WC.

The Dwyer Instruments 1831-1-RA-S Low Differential Pressure Switch is used for HVAC systems to measure the pressure difference between two points to maintain an effective airflow and system efficiency. This manual reset switch is used in a pressure range of 2.5-9" WC and it is essential in the air handling units, variable air volume systems, and filtration systems. It assists in avoiding pressure differentials that may lead to overheating and wastage of energy, hence cutting on costs of operation. The switch provides comfort and safety to the people and also the equipment as it controls the airflow and protects the equipment from pressure.