745-103

This premium 48-inch universal thermocouple is an essential safety sensor designed for a wide range of gas-fired appliances, including furnaces, boilers, water heaters, and fireplaces. Engineered to generate a consistent 30 millivolt (30mV) signal, this thermocouple monitors the pilot flame to ensure safe operation. When the pilot light is lit, the thermocouple produces a small electrical current to hold the gas valve open; if the flame goes out, the device quickly cools and signals the gas valve to shut off, preventing dangerous gas leaks. With its extra-long 48-inch lead, this component offers maximum versatility for various installation configurations, making it an ideal replacement for pilot assemblies where a shorter lead cannot reach. It is a reliable solution for troubleshooting a pilot light that won't stay lit or a heating system that fails to engage.
Type: Thermocouple / Pilot Safety Component
Size: 48-inch Lead
Dimensions: 48 inches
Application: Commonly used in gas-fired furnaces, residential and commercial water heaters, boilers, space heaters, and gas log fireplaces.
Specifications: Voltage Output: 30mV (Millivolts); Lead Material: Copper; Includes mounting nut for standard pilot burner brackets.