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Siemens QRB4B-D050B40B Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-D030A25 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-C036B40B Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-C036B40 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B070B70B Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B070B70 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B050B70B Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B050B70A Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B050B70 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B036B40B Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B036B40 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet

Siemens QRB4B-B036A25 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet