System Sensor P2WLED-LF Wall Mount Strobe Sounder Low-Frequency White

System Sensor P2WLED-LF Wall Mount Low Frequency Sounder Strobe - White

The System Sensor P2WLED-LF Wall Mount Low Frequency Sounder Strobe delivers reliable audible and visual emergency notification while meeting NFPA 72 sleeping area requirements. Designed for applications where low-frequency notification is required, this device produces a 520 Hz ±10% square wave tone, making it ideal for hotels, apartments, healthcare facilities, dormitories, and other sleeping occupancies.

Part of the innovative L-Series with LED platform, the P2WLED-LF combines advanced LED technology with lower current draw, helping reduce power consumption while maintaining exceptional performance. The modern, low-profile design complements any commercial environment while simplifying installation and ongoing maintenance.

Engineered for faster installations, the plug-in design minimizes back box intrusion and virtually eliminates costly ground faults. The universal mounting plate features built-in shorting springs, allowing installers to verify wiring continuity before the notification appliance is installed. Integrated Digital Voltage Meter (DVM) diagnostic test points make troubleshooting faster by enabling voltage measurements without removing the device from the wall.

The P2WLED-LF is electrically compatible with legacy SpectrAlert®, SpectrAlert Advance®, and L-Series notification appliances, providing an easy upgrade path for existing fire alarm systems.

Key Features

• Produces a 520 Hz ±10% square wave tone to meet NFPA 72 sleeping area requirements

• Energy-efficient LED technology with lower current draw

• Integrated strobe and low-frequency sounder in a single wall-mounted device

• Built-in Digital Voltage Meter (DVM) test points for faster diagnostics

• Field-selectable candela settings:

  • 15 cd

  • 30 cd

  • 75 cd

  • 95 cd

  • 110 cd

  • 135 cd

  • 185 cd

• Selectable high and low tone options to optimize power consumption

• Rotary switches for quick candela, tone, and volume configuration

• Plug-in design simplifies installation and reduces wiring errors

• Universal mounting plate with onboard shorting springs for wiring continuity testing

• Compatible with SpectrAlert®, SpectrAlert Advance®, and L-Series notification appliances (16–33 VDC)

• Supports synchronization using System Sensor Sync Protocol with compatible UL-certified power supplies or the System Sensor MDL Sync Module

• Modern low-profile appearance

• White finish

Applications

The System Sensor P2WLED-LF is ideal for:

• Hotels and motels

• Apartments and condominiums

• Hospitals and healthcare facilities

• Assisted living communities

• Dormitories

• Commercial buildings

• Educational facilities

• Any application requiring NFPA 72-compliant low-frequency audible notification

Specifications

• Manufacturer: System Sensor

• Model: P2WLED-LF

• Product Type: Wall Mount Low Frequency Sounder Strobe

• Audible Frequency: 520 Hz ±10% Square Wave

• Mounting: Wall

• Color: White

• Operating Voltage: 16–33 VDC

• Selectable Candela Settings: 15, 30, 75, 95, 110, 135, 185 cd

• Synchronization: System Sensor Sync Protocol

• UPC: 783863066320

Documents

• L-Series with LED Indoor Horns, Strobes and Horn Strobes — Data Sheet (PDF)