Supco FLS401 4in Furnace Flame Sensor for Hot Surface Ignition

The Supco FLS401 flame sensor can replace many of the popular sensors in today's furnaces that use hot surface or direct spark ignition systems. Features For Hot Surface Ignition (HSI) systems Mount on multiple burners, or adjacent to igniter Use with spark ignition and flame sensing Alumina ceramic insulator Kanthal flame rod material can withstand 1800°F See Product Sheet F587 in Downloads section for additional X-refs Specifications Length (Flange to Tip): 4" Termination: .25" Quick Disconnect Lead Length: 30"