System Sensor SPSRL-SP SF 23/01 Integrity horns and horn-strobes are

Integrity horns and horn-strobes are designed for 16 to 33 Vdc operation and must be connected to signal circuits that output a constant (not pulsed) voltage

We call this technology 3D

For use when there is a need to expand a compatible control panel beyond its standard number of on-board initiating zones or points

commercial laundry rooms

including the distinctive three-pulse temporal pattern (ANSI Temporal 3) fire alarm signal now required by NFPA 72 for commercial and residential applications

System Sensor SPSRL-SP SF 23/01 Integrity horns and horn-strobes areThe System Sensor L Series offers the most versatile and easy to use line of horns, strobes, and horn strobes in the industry with lower current draws and modern aesthetics. With white and red plastic housings, standard and compact devices, and plain, FIRE, and FUEGO printed devices, System Sensor L Series can meet virtually any application requirement.