Honeywell Flame Detector, 60 inch Lead Length, Cadmium Sulfide for use with: R4166, R4184, R8182, R8184, R8185, R8404, R8991, R7997, R7184 and R7284 Oil Primary Control, 1 inch length x 1/2 inch Width x 1-7/8 inch H
Photoconductive flame sensing device for sequencing oil burner systems.