System Sensor SPSCWHK-P Wall-Mount Speaker Strobe
The SPSCWHK-P is a combination audible-visual notification device designed for fire alarm and emergency signaling in indoor and outdoor wall-mount applications. This unit pairs a speaker horn with an integrated strobe to deliver coordinated alerts across distributed locations in a single mounting footprint — reducing device count and simplifying panel wiring versus separate horn and strobe installations.
Overview
Wall-mounted speaker strobes are core to life safety notification systems where synchronized sound and flash must reach multiple zones from a single point. The SPSCWHK-P accepts 12VDC or 24VDC input (auto-selects based on applied voltage) and delivers horn output rated at 88+ dBA at 16 volts — sufficient to override ambient facility noise in corridors, stairwells, and warehouse spaces. Strobe output is field-selectable across 15, 15/75, 30, 75, 95, 110, 115, 135, 150, 177, and 185 candela, allowing you to match brightness to ceiling height and room geometry without swapping hardware. White plastic housing suits standard interior finishes; outdoor-rated construction handles temperature and humidity swings without housing degradation.
Compatibility
The SPSCWHK-P integrates with fire alarm control panels and legacy SpectrAlert® Advance systems via standard 12/24VDC loop wiring. Electrically compatible with SpectrAlert Advance device lines and control circuits designed for combination audible-visual notification. Install on standard back boxes and outlet plates using the universal mounting plate included — shorting spring provides ground-fault detection before final device seating, catching wiring errors before they propagate.
Installation Notes
Mount on wall plates using the included universal bracket; strobe and horn orientation is field-adjustable to direct sound and light as needed. Rotary switch offers three volume selections and tone options — set once during commissioning. Plug-in design minimizes back-box intrusion, reducing installation time and eliminating common ground-fault failures. Verify 12 or 24VDC supply and polarity before seating the device; the auto-detect feature simplifies branch-circuit configuration but does not tolerate reversed polarity.
