System Sensor SPWKL is a wall-mounted speaker designed for fire alarm and emergency communication systems. The compact form factor fits seamlessly into standard wall installations while delivering clear, intelligible voice announcements and alarm tones throughout occupied spaces. This speaker provides consistent audio coverage in offices, retail environments, warehouses, and institutional facilities. The robust construction withstands continuous operation in demanding commercial applications. Integration with standard fire alarm control panels and voice evacuation systems is straightforward, requiring minimal additional wiring or configuration. Built to meet NFPA 72 standards, the SPWKL ensures reliable emergency notification performance.

The speaker's design minimizes feedback and distortion, maintaining message clarity even in high ambient noise environments. Ideal for facilities requiring coordinated voice evacuation, emergency instructions, or background music integration. Durable mounting hardware and weather-resistant construction support both indoor and covered outdoor installations.

Specifications:

Features:

• Wal Mounting;
• Indoor Location
• 25 Volts or 70.7 Volts (nominal)
• Field selectable candela settings on wall units: 15, 30, 75, 95, 110, 135, 185
• Rotary switch simplifies field selection of speaker voltage (25 and 70.7 Vrms) and power settings (¼, ½, 1 and 2 watts)
• Speakers offer high fidelity and high volume sound output
• 520 Hz +/- 10% square wave tone capable with compatible FACP
• Compatible with System Sensor synchronization protocol
• Electrical compatibility with existing SpectrAlert and SpectrAlert Advance products