Resideo - Honeywell Home Q340A1066 Thermocouple

Q340A1066 Thermocouple from Resideo - Honeywell Home provides precise flame sensing for gas-fired heating systems. This Type Universal thermocouple delivers reliable operation for pilot burners and safety control power units, with easy installation in many makes and models.

With an 18-inch length and a 11/32 inch-32 male connector nut, it fits standard installations. The temperature measuring range is 1400°F hot junction and 780°F cold junction, ensuring accurate readings across a wide operating spectrum. The unit's resistance is 0.02 Ω, and it outputs 26–32 millivolts open-circuit with a nominal 30 millivolts rating. It is CSA-approved for safety and reliability in residential and commercial systems.

• Universal Type thermocouple for broad compatibility with most standing pilot gas systems
• 18-inch length and 11/32" x 32" male connector for easy installation
• Ideal for Pilot burners and standing pilot gas-fired heating systems
• Includes adapter and push-in clip for quick wiring and secure fit
• CSA-approved, built for durable operation in harsh environments
• Nominal 30 mV output (open circuit 26–32 mV, low 0.02 Ω resistance)

Designed for compatibility with a safety control power unit, this thermocouple ensures reliable flame sensing and long-term performance in modern heating systems.