Siemens QRB3S
SIEMENS
Siemens QRB3 Photoresistive flame detector, without flange, without clamp, normal sensitivity Datasheet
SIEMENS
Siemens QRB3(1) Datasheet
SIEMENS
Siemens 428614900 Flange, for QRB3
Siemens QRB4B-B050B70 Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. Datasheet