Low Water Cut-Off Electronic Probe & Control Safgard 1150 120 V Auto-Reset

The Safgard 1150 low water cut-off (HY-1150) is a technician-ready OEM replacement control designed for gas or oil-fired hot-water boilers. It interrupts burner operation if water falls below the probe level and automatically restores operation when levels normalize. This unit operates on 120 V single-phase power, features auto-reset functionality, a built-in burner-circuit test switch, LED power and low-water indicators, and supports pressures up to 160 psi with water temperatures up to 250 °F. The ¾″ NPT probe threads or equalizer tee mount, pre-wired leads, solid-state sensor, and durable polymer housing provide long-term reliability, simplify service checks, and restore code-compliant boiler protection. Ideal for technicians replacing worn floats or mechanical switches, the HY-1150 ensures accurate water-level detection, safe burner operation, and simplified maintenance.