The PSE-801-U-120 Low Water Cut-Off (LWCO) with external barrel probe is engineered for precise monitoring of water levels in steam and hot water boilers. This model features a 120V operation and is designed to meet ANSI standards for safety and reliability. The external barrel probe enhances sensitivity and response time, ensuring immediate detection of low water conditions. Constructed from high-quality materials, it withstands harsh environments and operates effectively within a temperature range of 32°F to 250°F. The PSE-801-U-120 is an essential safety device for maintaining boiler efficiency and preventing damage.