Notifier FSP-851A Addressable Smoke Detector

The Notifier FSP-851A is an intelligent addressable photoelectric smoke detector designed to provide dependable early warning fire detection in commercial fire alarm systems.

The detector supports Notifier FlashScan and CLIP communication protocols, allowing individual point identification, programmable sensitivity, maintenance monitoring, and rapid communication with compatible fire alarm control panels. Its plug-in construction simplifies installation, inspection, cleaning, and replacement.

Product Functions

• Detects smoke using photoelectric sensing technology
• Reports alarm conditions to the fire alarm control panel
• Provides intelligent addressable communication
• Supports programmable detector sensitivity
• Continuously monitors detector sensitivity
• Provides individual point identification
• Reports detector maintenance conditions
• Provides visual normal and alarm indication
• Supports remote testing from the control panel
• Supports walk test operation
• Supports magnetic functional testing
• Provides continuous detector supervision

Smoke Detection Performance

The FSP-851A uses a specialized optical sensing chamber designed to respond to smoke generated by a broad range of combustion sources. The detector’s listed sensitivity range is 0.5% to 2.35% per foot obscuration.

Sensitivity can be programmed through the compatible Notifier fire alarm control panel.

Testing & Maintenance

Continuous sensitivity monitoring helps identify detector contamination and maintenance requirements. The removable plug-in detector head can be serviced or replaced without disturbing permanent field wiring connected to the detector base.

Detector Base Options

The FSP-851A plug-in design supports multiple detector base configurations, allowing the device to be adapted to different fire alarm installation requirements.

The detector head is approximately 2.1 inches high and weighs approximately 5.2 ounces.

The FSP-851A is specified for operation from 32°F to 120°F (0°C to 49°C) with a relative humidity range of 10% to 93% noncondensing.

Construction & Design

The FSP-851A features a sleek low-profile enclosure manufactured from off-white fire-resistant plastic.

Protection & Applications

Suitable for:

• Commercial Fire Alarm Systems
• Intelligent Addressable Fire Alarm Systems
• Office Buildings
• Hospitals
• Healthcare Facilities
• Schools and Universities
• Hotels
• Government Buildings
• Industrial Facilities
• Warehouses
• Retail Buildings
• Institutional Facilities
• Indoor Smoke Detection
• Commercial Life Safety Systems

FSP-851A Datasheet