An electro-mechanical pressure switch is a device that monitors pressure levels and triggers an electrical signal when a pre-set pressure threshold is reached. Using a mechanical sensing element such as a diaphragm, piston, or bellows, it activates or deactivates electrical contacts to control systems or trigger alarms. Electro-mechanical pressure switches are widely used in industries like oil and gas, water treatment, and HVAC systems, where accurate pressure control and safety are essential. These switches are valued for their reliability, adjustable setpoints, and compatibility with various systems, providing dependable performance in diverse applications.