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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.

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

Others

  • Mounting Type
    • Ceiling

Others

  • Mounting Type
    • Ceiling
  • Mounting Type : Ceiling
Others
Name
Description
File Size
Date
Size
Low Frequency Notification Appliances Applications Guide
application/pdf 320.97 KB
8/3/2022
320.97 KB
L-Series Low Frequency Sounder Strobes Datasheet
application/pdf 2.28 MB
8/16/2022
2.28 MB
L-Series Low Frequency Sounder Strobes Manual
application/pdf 2.52 MB
8/3/2022
2.52 MB
0 Bytes
0 Bytes
L-Series: Horn Strobe (Ceiling) CAD-BIM
application/zip 3.75 MB
8/11/2022
3.75 MB
L-Series Low Frequency HCRL-LF-HCWL-LF CAD and BIM files
application/zip 5.09 MB
8/12/2022
5.09 MB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
application/pdf 212.54 KB
9/21/2022
212.54 KB
L-Series Low Frequency Sounders and Sounder Strobes
application/pdf 153.34 KB
9/21/2022
153.34 KB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
application/pdf 215.68 KB
9/21/2022
215.68 KB
L-Series Low Frequency Sounders and Sounder Strobes
application/pdf 154.01 KB
9/21/2022
154.01 KB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
application/pdf 217.69 KB
9/21/2022
217.69 KB
Installation Instructions
Name
Description
File Size
Date
Size
L-Series Low Frequency Sounder-Strobes Installation Guide
application/pdf 5.11 MB
8/25/2022
5.11 MB
Name
Description
File Size
Date
Size
Low Frequency Notification Appliances Applications Guide
320.97 KB
8/3/2022
320.97 KB
L-Series Low Frequency Sounder Strobes Datasheet
2.28 MB
8/16/2022
2.28 MB
L-Series Low Frequency Sounder Strobes Manual
2.52 MB
8/3/2022
2.52 MB
0 Bytes
0 Bytes
L-Series: Horn Strobe (Ceiling) CAD-BIM
3.75 MB
8/11/2022
3.75 MB
L-Series Low Frequency HCRL-LF-HCWL-LF CAD and BIM files
5.09 MB
8/12/2022
5.09 MB
L-Series Low Frequency Sounder-Strobes Installation Guide
5.11 MB
8/25/2022
5.11 MB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
212.54 KB
9/21/2022
212.54 KB
L-Series Low Frequency Sounders and Sounder Strobes
153.34 KB
9/21/2022
153.34 KB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
215.68 KB
9/21/2022
215.68 KB
L-Series Low Frequency Sounders and Sounder Strobes
154.01 KB
9/21/2022
154.01 KB
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
217.69 KB
9/21/2022
217.69 KB
Name
Description
File Size
Date
Size
Low Frequency Notification Appliances Applications Guide
320.97 KB
8/3/2022
L-Series Low Frequency Sounder Strobes Datasheet
2.28 MB
8/16/2022
L-Series Low Frequency Sounder Strobes Manual
2.52 MB
8/3/2022
L-Series: Horn Strobe (Ceiling) CAD-BIM
3.75 MB
8/11/2022
L-Series Low Frequency HCRL-LF-HCWL-LF CAD and BIM files
5.09 MB
8/12/2022
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
212.54 KB
9/21/2022
L-Series Low Frequency Sounders and Sounder Strobes
153.34 KB
9/21/2022
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
215.68 KB
9/21/2022
L-Series Low Frequency Sounders and Sounder Strobes
154.01 KB
9/21/2022
L-SERIES LOW FREQUENCY : Low Frequency Sounders and Sounder Strobes
217.69 KB
9/21/2022
L-Series Low Frequency Sounder-Strobes Installation Guide
5.11 MB
8/25/2022
Image
SKU
Description
alt
HCRL-LF
LF Sounder: Ceiling: Red: Plain
alt
HCWL-LF
LF Sounder: Ceiling: White: Plain
Image
SKU
Description
alt
HCRL-LF
LF Sounder: Ceiling: Red: Plain
alt
HCWL-LF
LF Sounder: Ceiling: White: Plain