The Groen 123580 18" Heavy Duty Coaxial Thermocouple W/ 11/32"-32 Threads 20-30 MV ensures dependable flame sensing for safe and consistent equipment operation. This coaxial thermocouple is designed to detect heat from the pilot flame and generate a small electrical signal between 20–30 millivolts, which signals the gas valve to remain open during operation. Its 18-inch length and threaded connection support secure installation and proper positioning within compatible equipment. By continuously monitoring flame presence, it helps prevent unburned gas flow and supports reliable ignition performance. The durable construction assists in maintaining safety, improving operational stability, and helping reduce unexpected equipment shutdowns in commercial kitchen environments.