System Sensor P2GRKLED L-Series Outdoor Compact Wall-Mounted Horn Strobe, FIRE, Red

The System Sensor P2GRKLED is a two-wire outdoor LED horn/strobe notification appliance designed for fire alarm and life safety signaling applications. Part of the L-Series with LED platform, this compact wall-mounted device features a red housing with FIRE lettering, seven selectable candela settings from 15 to 185 cd, and eight selectable horn tone and volume combinations. Operating on 16-33 VDC (24 VDC nominal), it provides synchronized audible and visual notification. Its NEMA 4X and IP56 weatherproof ratings, -40 F to 151 F operating temperature range, and compatibility with legacy System Sensor notification circuits support demanding outdoor installations.

System Sensor P2GRKLED Outdoor LED Horn/Strobe with Selectable Candela

The System Sensor P2GRKLED L-Series Outdoor LED Horn/Strobe combines audible fire alarm signaling and high-visibility LED strobe notification in a compact, weatherproof wall-mounted appliance. Designed for outdoor fire alarm systems, commercial buildings, industrial facilities, educational campuses, parking structures, and exposed entrances, the P2GRKLED features a red enclosure with FIRE lettering and an integrated LED visual signal. Its two-wire horn/strobe configuration enables audible and visual notification through a compatible fire alarm notification appliance circuit (NAC), reducing wiring complexity compared with separate signaling devices. The compact L-Series design provides a coordinated appearance with other System Sensor notification appliances while supporting the environmental demands of exterior and wet-location installations.

The P2GRKLED operates on regulated 24 VDC nominal power, with an operating range of 16-33 VDC. Its energy-efficient LED strobe offers seven field-selectable wall-mount candela settings: 15, 30, 75, 95, 110, 135, and 185 candela, allowing installers to match visual notification intensity to project requirements. The strobe operates at a nominal one-flash-per-second rate and supports synchronization through compatible fire alarm control panels, UL-approved power supplies using System Sensor synchronization, or an appropriate MDL synchronization module. The audible signaling circuit provides eight selectable horn tone and volume combinations, including Temporal 3 and continuous patterns at high or low output, with standard and 3.1 kHz tone options. Manufacturer-specified sound output ranges from 75 to 85 dBA, depending on the selected setting, while horn/strobe current consumption varies with candela output and tone configuration.

The System Sensor P2GRKLED features a weather-resistant enclosure meeting NEMA 4X, Type 4X, and IP56 requirements, providing protection against environmental exposure in outdoor, wet, and washdown applications. The device operates across a wide temperature range of -40 F to 151 F (-40 C to 66 C) and features tamper-resistant construction suitable for demanding installation environments. Its compact wall-mounted housing measures approximately 5.84 inches long by 3.76 inches wide by 1.87 inches deep, excluding the additional depth of the surface-mount back box. The compatible SBBGRL red weatherproof back box supports surface installation and cable entry, while the supplied weatherproof mounting components and UL-listed waterproof wire connectors facilitate reliable electrical connections. The device's standalone weatherproof construction eliminates the need for additional back-box caulking to achieve its specified environmental protection rating when installed according to manufacturer instructions.

The P2GRKLED is designed for compatibility with System Sensor SpectrAlert, SpectrAlert Advance, and L-Series notification appliance circuits, providing a retrofit option for installations using supported legacy signaling equipment. Its field-selectable candela, tone, and volume settings are configured through rotary selection switches, allowing installers to establish the required notification characteristics without replacing the appliance. Electrical connections accommodate 12-18 AWG field wiring, and the weatherproof backplate supports supervised notification appliance circuit connections. The LED strobe design provides lower electrical current demand than conventional xenon-based signaling devices, helping reduce notification circuit loading and improve system design flexibility. When replacing older outdoor System Sensor appliances, the manufacturer requires replacement of the existing device and back box with the compatible L-Series components.

The System Sensor P2GRKLED supports outdoor fire alarm notification at commercial entrances, warehouses, industrial sites, loading docks, parking structures, and other locations requiring coordinated audible and visual emergency signaling. Manufacturer documentation identifies ANSI/UL 464 and ULC 525 for public-mode audible signaling, along with ANSI/UL 1638 and ULC 526 for public-mode visual signaling. The appliance also carries manufacturer-published agency approvals for applicable fire protection installations. Its selectable 15-185 candela LED strobe, eight horn configurations, and compatibility with System Sensor synchronization equipment allow installers to tailor notification performance to applicable system design requirements. Installation, device spacing, circuit loading, and ongoing inspection must follow NFPA 72, applicable local codes, and the manufacturer's installation instructions. Combining weatherproof construction, compact dimensions, programmable notification outputs, and low-current LED technology, the P2GRKLED provides an integrated outdoor signaling solution for professionally designed fire alarm systems.