System Sensor SRLED
System Sensor SRLED
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The System Sensor P2RL-LF is an L-Series low-frequency sounder and strobe combination for fire alarm notification in indoor wall applications. It generates a 520 Hz low-frequency audible alarm pattern while providing simultaneous visual notification via adjustable-candela strobe light. The device features selectable temporal patterns including Temporal 3, Temporal 4, and continuous output modes, making it suitable for NFPA 72 compliant evacuation signaling.
Key Features
- Integrated sounder (520 Hz low-frequency) and strobe in single unit
- Selectable temporal patterns: Temporal 3, Temporal 4, and Continuous modes
- Field-selectable High/Low output control via rotary switch
- 7 candela settings (15, 30, 75, 95, 110, 135, 185) for intensity customization
- 2-wire circuit configuration for simplified installation
- Plug-in design with minimal back box intrusion
- Red color with FIRE marking for code-required identification
- Compatible with legacy SpectrAlert and L-Series devices
Technical Specifications
- Sounder Output: 520 Hz ± 10% square wave low-frequency tone
- Strobe Output: Adjustable candela settings (15-185 cd)
- Operating Voltage: 24 VDC nominal
- Wiring: 2-wire circuit
- Control: High/Low switch, temporal pattern selector (T3/T4/Continuous)
- Mounting: Wall mount
- Color: Red with white FIRE marking
Certifications
- UL 1971 Listed notification appliance
- UL 464 Listed for public mode evacuation
- NFPA 72 temporal pattern compliant
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