FS-OSI-RI

The NOTIFIER FS-OSI-RI is an intelligent addressable reflective beam smoke detector ideal for large open spaces like warehouses, atriums, and arenas with high ceilings, where spot detectors are impractical.
It uses infrared light obscuration with a combined transmitter/receiver and reflector, featuring a wide 12° field of view for automatic alignment despite building movement up to ±1°.
Key Specifications
Feature
Specification
Range
16–328 ft (5–100 m); automatic sensitivity selection 
Adjustment
50° horizontal, 20° vertical ​
Sensitivity
Levels: 25%, 30%, 40%, 50% obscuration 
Voltage
15–32 VDC (nominal 24 VDC); max alarm 22 mA @ 32 VDC ​
Temperature
Storage: 32–100°F (0–37.8°C); Application: -4–131°F (-20–55°C) ​
Features
Sunlight/building movement resistant; remote test (RTS151); built-in heater 
Compatibility
NFS2-3030, NFS2-640, NFS-320, NFW-50X/100X panels