Infrared Flame Detector, Lead Sulfide, 48" Lead Length, 3/4" NPT Mounting, -20/125 Degree Operating Range, Used for Combination or Dual Fuel Applications, Detects Pilot and Main Flame, Includes Magnifying Lens, Sulfide Cell, Orifice, Heat Block and Reducer Bushing

Infrared Flame Detector, Lead Sulfide, 96" Lead Length, 3/4" NPT Mounting, -20/125 Degree Operating Range, Used for Combination or Dual Fuel Applications, Detects Pilot and Main Flame, Includes Magnifying Lens and sulfide Cell

UV SENSOR,1/2"NPT -40/140F

Solid State Ultraviolet Flame Detector, 96" Lead Length, 1/2" NPT Pipe Mounting, -40/200 Degree Ambient Temperature Range, Used on Gas, Oil, or Combination Burners, Intermittent operation Only ( Burner Cycled at least once each 24 Hours ), Used with R7851B Series amplifiers

Dynamic Self Checking Solid State Ultraviolet Flame Detector, For use with Gas , Oil or other Fuels, 120Vac, 3/4" NPT Mounting, Nema 4 Rated, -40/175 Degree Ambient Temperature, 96" Lead Length,