L-Series LED Horn Strobe with Selectable Candela, Rotary Tone and Volume Control, 2-Wire 24VDC Operation, and SpectrAlert Compatibility The System Sensor P2RLED is an L-Series LED horn strobe that combines audible and visual fire alarm notification in a 2-wire wall-mount package with lower current draw than traditional xenon strobe technology. LED-based strobe output with field-selectable candela settings lets installers configure the visual output for each location without stocking multiple part numbers, and the rotary switches for horn tone and volume provide the same flexibility on the audible side. The P2RLED operates on 24VDC and is electrically compatible with SpectrAlert, SpectrAlert Advance, and all L-Series devices, allowing it to integrate into existing notification appliance circuits without rewiring or protocol changes. The L-Series platform is designed for fast installation and reduced commissioning time. The universal plug-in mounting plate includes a built-in shorting spring that maintains circuit continuity while the device is removed, so installers can mount backplates first and snap in devices after painting and finishing. Digital Voltage Meter diagnostic test points on the horn strobe let technicians verify voltage at the device without removing it from the mounting plate. The tamper-resistant housing in red with a clear lens delivers 88+ dBA at 16V and mounts to standard electrical boxes in commercial, institutional, and educational facilities. Where the P2RLED Fits Office buildings, corporate facilities, and mixed-use commercial spaces where the LED technology reduces current draw on the notification appliance circuit, allowing more devices per NAC power supply and reducing panel and power supply counts on large projects, while the selectable candela output configures each device for hallways, open offices, and conference rooms without changing the part number Schools, universities, and institutional buildings where backward compatibility with SpectrAlert and SpectrAlert Advance systems allows phased upgrades from legacy notification devices to L-Series without replacing the fire alarm panel or NAC wiring, and the plug-in mounting design speeds installation across buildings with hundreds of notification points Hospitals, assisted living facilities, and healthcare environments where the rotary horn tone and volume switches allow each device to be configured for the noise level of its specific area, the DVM test points simplify annual inspection without disrupting occupied spaces, and the shorting spring maintains NAC circuit supervision during device maintenance What the P2RLED Delivers LED Strobe with Selectable Candela: LED technology provides lower current draw than xenon across the full candela range. Field-selectable candela output via rotary switch configures each device for its specific installation location. Clear lens on red housing for code-compliant visual notification. 88+ dBA Horn with Tone and Volume Control: Audible output of 88+ dBA at 16V with rotary switches for field-selectable horn tones and high/low volume settings. 2-wire operation on 24VDC notification appliance circuits. Tamper-resistant wall-mount housing. SpectrAlert and L-Series Compatibility: Electrically compatible with SpectrAlert, SpectrAlert Advance, and all L-Series notification devices for seamless integration into existing and new fire alarm systems. Maintains synchronization across mixed-generation NAC circuits. Plug-In Installation with DVM Diagnostics: Universal mounting plate with built-in shorting spring maintains NAC circuit continuity during device installation and removal. Digital Voltage Meter test points allow in-place voltage verification. Mounts to standard electrical boxes.
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