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Simplex 2975-9452 Fire Alarm 3 Bay Box Solid Door 743-945
System Sensor B501-IV 4 Inch Base
The system will synchronize the strobes system wide
Sounder bases both UL 268 and UL 464 compliant
Four outputs are programmable as NACs (Notification Appliance Circuits) or releasing circuits
Potter OSYSU-2 Series Outside Screw and Yoke Valve Supervisory Switch S1209 (917-0059-002) Simplex 2975-9452 Fire Alarm 3Potter OSYSU 2 Series Outside Screw and Yoke Valve Supervisory Switch (Double Switch) The OSYSU is used to monitor the open position of an OS&Y (outside screw and yoke) type gate valve. This device is available in two models; the OSYSU 1, containing one set of SPDT (Form C) contacts, and the OSYSU 2, containing two sets of SPDT (Form C) contacts. These switches mount conveniently to most OS&Y valves ranging in size from 2 to 12 (50mm to 300mm). They
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US$ 259.00