Resideo - Honeywell Home Q390A1053 Thermocouple

Q390A1053 Thermocouple from Resideo (Honeywell Home) delivers precise flame sensing for your gas furnace. The Q390A1053 Thermocouple is designed for standing pilot gas-fired heating systems and is CSA approved for safety and reliability.

With a 30-inch length, this thermocouple offers flexible routing and quick installation. The hot junction tolerates up to 1400°F, while the cold junction remains accurate up to 780°F. It features a low resistance of 0.02 Ω and an open-circuit output of 26–32 mV (nominal 30 mV). The 11/32" - 32 male connector nut provides a secure fit, and the unit includes an adapter and push-in clip for fast mounting.

• 30-inch length for easy routing
• 11/32" - 32 male connector nut for secure installation
• CSA approved for safety and compliance
• Open-circuit output: 26–32 mV (nominal 30 mV)
• Resistance: 0.02 Ω for quick response
• Temperature range: hot junction up to 1400°F, cold junction up to 780°F
• Includes adapter and push-in clip for effortless mounting
• Ideal for standing pilot gas-fired heating systems