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The Diversitech PFS401 is a flame sensor used in residential HVAC systems as a replacement flame sensing probe for ignition systems. It detects the presence of a flame to support ignition safety and control in furnaces and burners. The unit is supplied as an individual part (UOM: EA) and is cataloged for residential HVAC OEM applications.
Replacement flame sensing probe for residential HVAC ignition systems, MPN PFS401, supplied as an individual unit.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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