External Sounder, Grade 3, Twin Piezo, Twin Strobe & Twin Comfort LED's,[email protected] Galvonised Steel Backplate. SAB operation, Ring line monitoring, Self Test with Fault Output, Remote Test Input, Selectable end of line resistors, Selectable cut off timer,
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External Sounder, Grade 3, Twin Piezo, Twin Strobe & Twin Comfort LED's,[email protected] Galvonised Steel Backplate. SAB operation, Ring line monitoring, Self Test with Fault Output, Remote Test Input, Selectable end of line resistors, Selectable cut off timer,