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Horns & Sounders

L-Series Low Frequency Ceiling Sounder

L-Series low frequency sounders include a variety of features that increase their application versatility while simplifying installation.

Overview

L-Series low frequency sounders include a variety of features that increase their application versatility while simplifying installation. They are designed to address the NFPA 72 sleeping space requirements that require a low frequency notification appliance that operates within frequency range of 520 Hz ± 10% and is of a square wave tone.

These devices feature plug-in designs making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults. Installers can also easily adapt devices to a suit a wide range of application requirements with 24V operation and a rotary switch for 520 Hz low frequency sounder tones.

Features & Benefits:
  • 520 Hz ± 10% square wave tone, NFPA compliance
  • Full candela range plus High/low tone options to optimize current draw for a wide variety of applications
  • Compact and standard, and round ceiling options
  • Rotary switch for high and low, temp 3 and temp 4 settings
  • Plug-in design with minimal intrusion into the backbox
  • Mounting plate shorting spring checks wiring continuity before device installation
  • Electrically compatible with legacy SpectrAlert® and SpectrAlert Advance devices
  • Updated modern aesthetics
Certifications:
  • UL Listed: S4011
  • FM Approved: PR452768
  • CSFM: 7135-1653:0516
Sort
Product Number
Image
SKU
Description
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HCRL-LF
LF Sounder: Ceiling: Red: Plain
alt
HCWL-LF
LF Sounder: Ceiling: White: Plain
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HCWL-LF-BP10
LF Sounder: Ceiling: White: Plain: Bulk 10pack
Image
SKU
Description
alt
HCRL-LF
LF Sounder: Ceiling: Red: Plain
alt
HCWL-LF
LF Sounder: Ceiling: White: Plain
alt
HCWL-LF-BP10
LF Sounder: Ceiling: White: Plain: Bulk 10pack