System Sensor P2WHK Wall Mount Outdoor Horn/Strobe 12/24V

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  • $93.96
  • Regular price $163.72


SpectrAlert Advance outdoor horns, strobes, and horn strobes shall mount to a weatherproof back box. A universal mounting plate shall be used for mounting ceiling and wall products. The notification appliance circuit wiring shall terminate at the universal mounting plate. Also, SpectrAlert Advance products, when used with the Sync•Circuit™ Module accessory, shall be powered from a non-coded notification appliance circuit output and shall operate on a nominal 12 or 24 volts. When used with the Sync•Circuit Module, 12-volt-rated notification appliance circuit outputs shall operate between 9 and 17.5 volts; 24-volt-rated notification appliance circuit outputs shall operate between 17 and 33 volts. Outdoor SpectrAlert Advance products shall operate between ?40 and 151 degrees Fahrenheit from a regulated DC or full-wave rectified unfiltered power supply. Strobes and horn strobes shall have field-selectable candela settings including 15, 15/75, 30, 75, 95, 110, 115, 135, 150, 177, and 185.


  • Weatherproof per NEMA 4X, IP56
  • Listed to UL 1638 (strobe) and UL 464 (horn)
  • Compatible with System Sensor synchronization protocol and legacy SpectrAlert products
  • Selectable high-candela strobe settings of 135, 150, 177 and 185 cd
  • 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 that tests wiring continuity before devices are installed
  • Plug-in design with minimal intrusion into the back box
  • Tamper-resistant construction
  • Wall mounting
  • Wall mount dimensions (including lens): 5.6"L × 4.7"W × 2.5"D (142 mm L × 119 mm W × 64 mm D)
  • Weatherproof, wall-mount back box dimensions (SA-WBB): 5.7"L × 5.1"W × 2.0"D