The System Sensor P2RK-SP FUEGO Outdoor Horn Strobe is an audible/visible fire alarm notification appliance designed for outdoor wall-mounted applications. It features a red housing marked FUEGO and combines an electronic horn with a selectable-output strobe.
The P2RK-SP is the Spanish-marked version of the P2RK outdoor horn strobe. It uses a two-wire configuration and includes the outdoor backbox required for its standard weatherproof installation.
Product Functions
- Provides audible fire alarm notification
- Provides visible fire alarm notification
- Designed for outdoor wall mounting
- Red housing with FUEGO marking
- Two-wire horn/strobe operation
- Includes outdoor backbox
- Provides seven selectable candela settings
- Supports Temporal 3 horn signaling
- Supports continuous horn signaling
- Provides three selectable horn volume levels
- Supports synchronized notification
- Supports compatible 12V and 24V circuits
- Designed for conventional fire alarm notification systems
Selectable Candela
The P2RK-SP provides seven field-selectable strobe settings:
15 cd
15/75 cd
30 cd
75 cd
95 cd
110 cd
115 cd
The 15 and 15/75 cd settings can automatically accommodate compatible 12V or 24V operation. Higher candela settings require an appropriate 24V notification circuit.
FUEGO Configuration
The specific P2RK-SP configuration provides:
Color: Red
Marking: FUEGO
Mounting: Wall
Environment: Outdoor
Function: Horn Strobe
Circuit: Two-wire
Candela Range: 15–115 cd
The -SP suffix identifies the Spanish FUEGO marking.
The standard P2RK uses FIRE lettering, while the P2RK-P is the corresponding plain/unmarked configuration.
Electronic Horn
The electronic horn provides selectable:
Temporal 3
and
Continuous
signaling.
A rotary selector also provides three audible volume settings, allowing the horn output to be adjusted according to the fire alarm notification requirements.
The horn is rated at 88 dBA or greater at 16V under the manufacturer’s specified conditions.
Outdoor Operation
The P2RK-SP is designed for outdoor and wet-location applications.
Published operating temperature range:
-40°F to 151°F
-40°C to 66°C
The outdoor P2RK platform is rated NEMA 4X when installed using the required approved weatherproof mounting arrangement.
Two-Wire Operation
The P2RK-SP uses a two-wire horn/strobe configuration.
The horn and strobe operate from a common notification appliance circuit, reducing wiring compared with four-wire models that provide separate horn and strobe circuit control.
Synchronized Notification
The P2RK-SP supports the System Sensor synchronization protocol.
With compatible synchronization equipment, multiple strobes can flash together while the audible appliances provide coordinated Temporal 3 signaling.
The strobe operates at approximately:
1 flash per second
through its specified operating range.
Electrical & Notification Information
Device Type: Outdoor Horn Strobe
Nominal Voltage: 12V / 24V
12V Operating Range: 8–17.5V
24V Operating Range: 16–33V
Candela: 15 / 15-75 / 30 / 75 / 95 / 110 / 115 cd
Horn Patterns: Temporal 3 / Continuous
Horn Volume: Three selectable levels
Minimum Horn Output: 88+ dBA at 16V
Flash Rate: Approximately 1 Hz
Color: Red
Marking: FUEGO
Mounting: Outdoor wall
Exact circuit current depends on the selected candela, horn volume, signaling pattern, and power-supply configuration.
Product Status
The P2RK-SP is a discontinued SpectrAlert Advance model. System Sensor’s discontinued-product documentation specifically identifies it as a red, two-wire outdoor horn strobe marked FUEGO, with selectable 15, 15/75, 30, 75, 95, 110, and 115 cd settings and an outdoor backbox included.
For replacement applications, the Spanish marking, outdoor rating, candela requirements, synchronization protocol, circuit voltage, and mounting arrangement should be verified before selecting a newer notification appliance.



