System Sensor SPSCRLED Fire Alarm Speaker Strobe

The System Sensor SPSCRLED fire alarm speaker strobe is a ceiling-mounted, red housing device from the L-Series with LED signaling that combines a high-efficiency speaker and a synchronized visual strobe to support emergency communication in life-safety systems. Commonly installed in schools, hospitals, commercial buildings, and industrial facilities, it enables coordinated audible messages and visual alerts within fire alarm and mass notification networks, making it suitable for evacuation and public address applications. Key technical specs include a selectable speaker voltage of 25 Vrms or 70.7 Vrms, power taps of 1/4 W, 1/2 W, 1 W, and 2 W, nominal operating voltage 16–33 VDC, and a frequency response from 400 to 4000 Hz; the unit is wired to a notification appliance circuit (NAC). Part of the System Sensor portfolio, the SPSCRLED is UL 1480 and UL 1971 listed for indoor use, validating its compatibility with fire alarm and emergency communication systems, and it is commonly used for repair, retrofit, expansion, or replacement within existing networks; related replacements include SPSCRL and SPSRLED-L.