Hobart 410839-00004 Thermopile 36" 2-Lead 250-750mV

A thermopile sensor like this is used in commercial gas cooking equipment to help generate and maintain the small electrical signal needed for safe ignition and flame control. Operating in the 250–750 mV range, it converts heat from the pilot flame into electrical energy that supports the gas valve system. With a 36-inch lead and 2-wire design, it allows flexible installation in fryers, ovens, grills, and steam equipment where consistent pilot flame detection is essential for safe startup and steady operation. This type of component is important because it directly supports the ignition system—if it weakens or fails, equipment may struggle to light or may shut down unexpectedly. It is commonly used in commercial fryers, griddles, steam generators, and gas ovens across restaurant kitchens. Replacing a worn thermopile can help restore proper flame sensing, improving startup reliability and keeping cooking equipment running smoothly during busy operations.

Equipment Compatibility:
Flame sensing and ignition support applications for Hobart Thermopile Sensor include commercial gas fryers, ovens, grills, and steam cooking equipment used in restaurant kitchens where stable pilot flame detection and safe startup operation are required. This Thermopile Sensor 410839-00004 works with equipment from brands such as Hobart, Vulcan, Imperial, Groen, Frymaster, Keating, Southbend, and more, where reliable millivolt flame sensing is required for safe operation and consistent burner performance. Brand Compatibility This part replaces several older or equivalent part numbers used by different equipment brands such as Hobart, Vulcan, Imperial, Groen, Frymaster, Keating, Southbend, and more. A full list of matching part numbers is available separately for easy reference.

Brand Compatibility:

Product Specifications:
Product Type: Thermopile Sensor
Manufacturer: Hobart
SKU: 410839-00004
Electrical Output: 250–750 mV
Wire Length: 36 inches
Design: 2-wire
Use: Helps gas equipment detect the pilot flame for safe operation

Key Features:

• Produces a small electrical signal from heat, which helps gas equipment detect the pilot flame and operate safely.
• The 36-inch wire allows flexible installation in different types of commercial cooking equipment.
• The 2-wire design supports reliable connection to compatible ignition and flame-sensing systems.
• Helps fryers, ovens, and other gas equipment operate properly by ensuring accurate flame detection.
• Replacing a worn thermopile can help restore reliable ignition performance and reduce unexpected shutdowns.

Reviews frequently describe improved flame sensing and more reliable ignition performance after replacing the thermopile sensor.