System Sensor HCWL-LF

Product Overview

 The L-Series low-frequency sounders and sounder strobes provide versatile, easy-to-install notification for wall or ceiling mounting. Designed to meet NFPA 72 sleeping space requirements, they produce a 520 Hz ±10% square wave tone. Plug-in design reduces back box intrusion and minimizes ground fault risks. A universal mounting plate with shorting spring allows wiring continuity checks before installation. Field-selectable candela settings, 24V operation, and a rotary switch offer flexibility for various applications.

Key Features

• 520 Hz ±10% square wave tone, NFPA compliant
• Nominal 24 VDC/FWR low-frequency operation
• Plug-in design with minimal back box intrusion
• Rotary switch for High/Low, Temp3, Temp4, Continuous; Coded option on sounder-only models
• Mounting plate shorting spring for wiring continuity testing
• Compatible with MDL3 sync module
• Electrically compatible with legacy SpectrAlert and SpectrAlert Advance devices (HW/R-LF and P2R/WH-LF)
• Approved for wall and ceiling mounting