The Q340A and Q390A thermocouples generate a thermoelectric current that senses a pilot flame on gas-fired heating systems. For easy pilot burner installation, the Q340A and Q390A come with a push-in clip, split nut and an adapter assembly. Each also comes with a male nut connector for Pilotstat® safety control power units and are available in a variety of lead lengths. The Q340A is a premium thermocouple with the long life and durability that your customers demand. Built with a maximum amount of copel, the Q340A will provide long-lasting service that reduces callbacks and keeps your customers happy.