System Sensor P4R

Unlike my System Sensor P2R, this alarm does 4-wire operation.

  • Brand
  • Model P4R
  • Manufacturer System Sensor
  • Type Alarm (Horn/Strobe)

Also in the collection
Wheelock 7002T-24

Wheelock 7002T-24

Category :
Each 7002T-24 has a somewhat different pitch, so I’ve kept several that sound different from each other.
Simplex 636-820

Simplex 636-820

Category :
This is the Simplex 4010 user interface which was taken out of a broken 4010.
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