Baso K15DA-24 Thermocouple Screw-In 24 Inch

The BASO Gas Products K15DA-24 is a 24-inch screw-in thermocouple, a crucial safety component for your gas furnace or boiler, weighing around 0.11 pounds. Unlike electrical components with set voltages, thermocouples generate a small millivolt (mV) signal based on temperature differences between two dissimilar metals they contain. Installed within the flame path of your furnace, the K15DA-24's metals react to heat, producing a voltage typically ranging from 20-28 mV. This millivolt signal acts as a safety switch, communicating with the gas control valve to regulate gas flow. If the flame extinguishes, the thermocouple cools rapidly, causing the voltage to drop. This significant decrease in voltage signals the gas control valve to shut off the gas supply, preventing potential leaks and hazards.