These diaphragm and piston miniature pressure switches have integrated pistons that actuate to turn switches on-off. Diaphragm pressure switches monitor negative and positive pressure levels in hydraulic and pneumatic systems. These electromechanically actuated switches provide accurate monitoring and control of circuits to help prevent overpressure issues that can cause damage and downtime in applications like HVAC equipment, medical devices, and industrial processing.

Hazardous-location miniature pressure switches have barriers that prevent the discharging of electrical, mechanical, or thermal energy into the atmosphere, which could cause a fire or explosion of combustible gas or dust. They have location ratings that classify their suitable environment for operation and must be mated with compatible hazardous-location devices to be compliant with safety standards. These pressure switches are often used in electrical assemblies found in chemical, pharmaceutical, petroleum, and other hazardous environments.