What is pressure supervisory switch?

A pressure supervisory switch is a safety device used in various industrial applications to monitor and control pressure levels within a system. It ensures that the pressure remains within safe operating limits by activating alarms or control systems if the pressure exceeds or falls below predetermined thresholds. These switches are commonly found in HVAC systems, refrigeration units, and boiler systems to prevent equipment damage and ensure operational safety. By providing real-time monitoring, they help maintain system integrity and prevent hazardous situations.