System Sensor HRL2-LF Low Frequency Sounder Wall Red

Product Description

The SYSTEM SENSOR HRL2-LF is a low frequency wall-mount sounder designed for life safety notification systems. Low frequency sounders produce a 520 Hz tone that meets code requirements for occupancies where sleeping occupants must be alerted, such as hotel guest rooms and residential sleeping areas. This unit mounts directly to a standard electrical wall box and is installed by licensed fire alarm technicians or electricians qualified in fire alarm system work. Its red housing meets common aesthetic and code requirements for visible notification appliances in commercial and residential fire alarm installations.

The HRL2-LF is suited for wall-mount applications in residential and light commercial occupancies where low frequency audible notification is required. Typical installation scenarios include sleeping areas in hotels, motels, dormitories, and multi-family residential buildings where NFPA 72 mandates low frequency audible signaling. The unit ships individually and is sold as a single device per package.

Key Features

• Low frequency 520 Hz tone output for sleeping area code compliance under NFPA 72
• Wall-mount form factor for direct installation on standard electrical boxes
• Red housing meets common fire alarm appliance identification requirements
• Single-unit packaging for straightforward field replacement or new installation

Compatibility

Designed as an OEM-style low frequency audible notification appliance for use in compatible fire alarm notification circuits in residential and commercial life safety systems.

Installation Notes

Installation should be performed by a licensed fire alarm technician or qualified electrician in accordance with NFPA 72 and applicable local codes. De-energize the notification appliance circuit at the fire alarm control panel before wiring or replacing this device. Verify circuit voltage and current draw compatibility with the control panel specifications prior to connection. Do not exceed the rated electrical parameters of the notification appliance circuit.