Siemens QRA2

qra2
Manufacturer Siemens

Siemens UV Detector QRA2

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Siemens UV  flame detector QRA2.

Flame sensors are used for monitoring gas flames, yellow or blue- burning oil flames as well as for ignition spark control. Plastic-encapsulated version, metallized to prevent static charge in the air stream of the fan, for direct mounting on the burner.