This Patterson-Kelley Low Gas Pressure Switch is a safety device designed to monitor and regulate the gas pressure in heating systems. It operates by detecting when the gas pressure falls below a predetermined level, subsequently interrupting the electrical supply to the gas valve or burner control. The switch features a manual reset option, allowing users to reactivate the system once the issue has been resolved. Constructed with robust materials for durability, it is designed for use in harsh environments and can withstand high temperatures. The product complies with industry standards for safety and efficiency.