System Sensor HRL-LF L-Series Indoor 2-Wire Selectable Output Low Frequency Sounder, Wall Mount, Red
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Key Features
- Meets NFPA 72 sleeping‑space requirement with a 520 Hz ±10% square‑wave tone to improve occupant wake response and life‑safety performance
- Plug‑in, low‑intrusion design and universal mounting plate with shorting spring speed installation and reduce wiring faults and callbacks
- Field‑selectable output and high/low tone options optimize audible coverage while managing current draw for diverse system needs
- Wall‑mount red housing provides high visibility for fire and security applications and integrates with existing SpectrAlert systems for simple upgrades
- Compatible with MDL3 sync module and 33V DC input for reliable, supervised operation in commercial security and fire monitoring systems
Quick Specifications
- Product Model
- HRL-LF
- Brand Name
- System Sensor
- Product Name
- HRL-LF Security Alarm
- Product Type
- Low Frequency
Frequently Bought Together
System Sensor HRL-LF L-Series Indoor 2-Wire Selectable Output Low Frequency Sounder, Wall Mount, Red
$77.80
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Total: $119.33
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Product information
HRL-LF
Overview
Designed for fast installation and reliable life‑safety notification, the System Sensor HRL-LF low frequency sounder provides proven alarm performance for commercial security and fire monitoring applications. The HRL-LF delivers the NFPA‑required 520 Hz ±10% square‑wave low‑frequency tone to improve wake response in sleeping spaces, while field‑selectable high/low settings let integrators balance audibility and current draw. Its plug‑in design with minimal backbox intrusion and a universal mounting plate with onboard shorting spring reduce installation time, eliminate costly ground faults, and allow wiring continuity tests before device fit‑out. The red wall‑mount housing (33V DC input) blends modern aesthetics with compatibility for legacy SpectrAlert and SpectrAlert Advance systems, plus MDL3 sync module support for coordinated signaling. Ideal for fire alarm, security, and building monitoring projects, the HRL-LF helps deliver compliant, dependable audible notification—perfect for new installs or retrofit upgrades. Specify the HRL-LF for enhanced occupant safety and easier commissioning in your next surveillance or alarm system deployment.
Features
- Meets NFPA 72 sleeping‑space requirement with a 520 Hz ±10% square‑wave tone to improve occupant wake response and life‑safety performance
- Plug‑in, low‑intrusion design and universal mounting plate with shorting spring speed installation and reduce wiring faults and callbacks
- Field‑selectable output and high/low tone options optimize audible coverage while managing current draw for diverse system needs
- Wall‑mount red housing provides high visibility for fire and security applications and integrates with existing SpectrAlert systems for simple upgrades
- Compatible with MDL3 sync module and 33V DC input for reliable, supervised operation in commercial security and fire monitoring systems
| General Information | |
|---|---|
| Brand Name | System Sensor |
| Manufacturer | Honeywell International, Inc |
| Product Name | HRL-LF Security Alarm |
| Product Type | Low Frequency |
| Product Model | HRL-LF |
| Product Series | L |
| Manufacturer Part Number | HRL-LF |
| Technical Information | |
| Alarm Type | Audible |
| Application/Usage | Alarm, Security |
| Connectivity Technology | Wired |
| Others | |
| Model Number Replaces | HR-LF |
| Physical Characteristics | |
| Color | Red |
| Depth | 1.5" |
| Width | 4.7" |
| Height | 5.6" |
| Form Factor | Wall Mount |
| Power Description | |
| Power Source | DC |
| Input Voltage | 33V DC |
| Product Information | |
| Mount Type | Wall Mount |
| Miscellaneous | |
| Indoor/Outdoor | Indoor |
| Country of Origin | MX |
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Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- HRL-LF
- Manufacturer part:
- HRL-LF
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
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Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsSystem Sensor HRL-LF L-Series Indoor 2-Wire Selectable Output Low Frequency Sounder, Wall Mount, Red
HRL-LF