Linear systems, since 1986 is the leading manufacturer of burner controllers for boilers and furnaces. Being a part of that flame amplifier is a flame detector which is receptive to visible light. This can be used as cds [cadmium sulphate] photo resistor which is a light sensing device. Flame amplifier is best for sensing flame in oil fired burners. The device has two potential free relay contacts rated at 230 v ac, 5 amps.
