System Sensor P4RK-R

Replacement 4-wire Horn/Strobe for outdoor use, standard candela, Red

Condition: New
Brand: System Sensor
Status: Active
SKU: 31486
Manufacturer Part #: P4RK-R


SpectrAlert Advance offers the broadest line of outdoor horns, strobes, and horn strobes in the industry. With white or red plastic housings, wall or ceiling mounting options, and plain or FIRE-printed devices, SpectrAlert Advance can meet virtually any application requirement, including indoor, outdoor, wet, and dry applications in temperatures from −40°F to 151°F.

Additional information

Weight 0.4 lbs



Production Status



  • Weatherproof per NEMA 4X, IP56
  • Listed to UL 1638 (strobe) and UL 464 (horn)
  • Compatible with System Sensor synchronization protocol and legacy SpectrAlert products
  • Field-selectable candela settings: 15, 15/75, 30, 75, 95, 110, 115, 135, 150, 177, and 15
  • Automatic selection of 12- or 24-volt operation at 15 and 15/75 candela
  • Rotary switch for horn tone and three volume selections
  • Horn rated at 88+ dBA at 16 volts
  • Rated from -40°F to 151°F
  • Universal mounting plate with an onboard shorting spring thtests wiring continuity before devices are installed
  • Plug-in design with minimal intrusion into the back box


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System Sensor - Data Sheet