Baso K19AT-72 72 Inch Thermocouple

The Baso K19AT-72H Thermocouple is a safety sensor vital for gas-fired HVAC equipment like furnaces. It converts heat into a small voltage signal, typically between 25 and 35 millivolts (mV). This voltage signal acts as a safety switch for the furnace's control board. By sensing the pilot light's flame, the thermocouple ensures a safe gas flow. If the flame goes out, the voltage drops, and the control board shuts off the gas supply. This critical function helps prevent gas leaks and potential hazards. Made with a long and flexible 72-inch length, it allows for easy installation within the furnace, and its lightweight design (0.23 lbs) makes handling convenient.