The System Sensor HRL-LF-BP10 is a bulk pack of ten low-frequency wall sounders. Each unit is red and wall-mount. It is audible only, so there is no strobe on this model.
Why the System Sensor HRL-LF-BP10 Uses Low Frequency
First, modern codes require a 520 Hz signal in many sleeping areas. This low-frequency tone wakes sleeping occupants more effectively. Therefore, these sounders fit hotels, dormitories, and apartments.
In addition, each sounder generates a 520 Hz ± 10% square-wave tone. A rotary switch then selects tone and output settings. As a result, installers tailor each device to the application.
Installation and Pack Details
Each sounder uses a plug-in design with minimal back-box intrusion. As a result, installation stays fast and foolproof. Furthermore, the low current draw eases notification circuit design. Finally, this part ships as a bulk pack of ten units.
Key Details
- Bulk pack of 10 low-frequency sounders
- Red, wall mount, audible only (no strobe, no candela)
- 520 Hz ± 10% square-wave tone
- Rotary switch for tone and output settings
- Plug-in design with low current draw
- Supports low-frequency requirements for sleeping areas
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 6 lbs |
|---|---|
| Dimensions | 15.5 × 12 × 6.5 in |
| Condition | New |
| Manufacturers | System Sensor |
| Part Type | Strobe |







