System Sensor HGWL2-LF L-SERIES 2ND GEN. Low Frequency Sounder; Compact; Wall; White; Plain

The System Sensor HGWL2-LF is a white, plain-housing compact wall-mount low frequency sounder from the second-generation L-Series, producing a 520 Hz square wave tone.

L-Series appliances use a plug-in design with minimal back box intrusion, which speeds installation and helps prevent ground faults. The universal mounting plate has an onboard shorting spring for testing wiring continuity before the device goes on, and DVM test points on the face let installers measure device voltage, including end-of-line checks, without removing the appliance.

Key features

• 520 Hz ± 10% square wave tone for NFPA compliance
• DVM diagnostic test points on the face
• High/low tone options to optimize current draw
• Rotary switch for tone and volume; sounder-only models include a Coded setting
• Plug-in mounting plate with shorting springs
• Electrically compatible with legacy SpectrAlert, SpectrAlert Advance and L-Series devices at 16-33 VDC
• Syncs via UL approved power supplies with System Sensor Sync protocol, or the MDL Sync Module

Ordering note

Direct replacement for the HW/RL-LF and P2R/WL-LF. Bezel kits for alternate markings and languages are available across the L-Series.

Documents

• L-Series Low Frequency Sounders and LED Low Frequency Sounder Strobes Datasheet