Explosion proof pressure switches are ideal for chemical process and other hazardous environments. Presair air, pressure and vacuum switches are also waterproof and shockproof.

Presair is a leading manufacturer of both adjustable explosion proof pressure switches and factory set pressure switches. Our factory set pressure switches are set at the factory to the specifications and parameters to fit our customers’ requirements. Factory set pressure switches have a range of 0.25 inches of water to 65 Psi. Our field adjustable pressure switches allow our customers the flexibility of easily setting the switch parameters in the field as driven by the needs of the project.