Honeywell - Thermocouple, 18-inch, 30 millivolt (mV), with 11/32-32 male connector. Senses pilot flame on gas-fired heating systems. Pilot flame heats tip of thermocouple, producing temperature differential between it and base to generate small amount of DC power, measured in millivolts. Push-in clip, split nut, and adapter assembly for easy pilot burner installation. Spade or quick-connect terminals available for millivolt gas control connections. Male nut connector for Pilotstat® safety control power units. Available in variety of lead lengths.