The 110V/220V Pressure Switch is a critical safety device designed to ensure the reliability and efficiency of automated chemical control systems, particularly in pool and spa environments. This versatile pressure switch operates on both 110V and 220V power supplies, providing flexibility for different installations. It features an adjustable pressure range from 2-11 PSIG, allowing for customization to meet specific system requirements. The switch includes a built-in safety mechanism that automatically shuts off the chemical controller if the circulation pump loses prime or stops working, preventing accidental chemical exposure. The easy installation process and compatibility with any automated chemical control system make it a user-friendly solution, while its durable, UL-listed components ensure reliable performance and safety.