System Sensor P2WLED-LF L-Series 520 Hz 2-Wire Wall-Mount LED Sounder Strobe, White

Designed for sleeping-space notification applications, this 2-wire wall-mount sounder strobe features a 520 Hz ±10% square-wave tone to support NFPA 72 low-frequency signaling requirements. LED technology helps reduce current draw, while selectable high/low tones let installers tailor operation to the application.

Field-selectable candela settings—15, 30, 75, 95, 110, 135, and 185—provide flexible visual signaling. A rotary switch simplifies tone, volume, and candela selection. The plug-in mounting plate includes a shorting spring for checking wiring continuity before installation, and discreet DVM test points enable voltage checks without removing the appliance.

Electrically compatible with legacy notification devices operating at 16–33 VDC. Synchronization requires a compatible power supply supporting the Sync protocol or a synchronization module.