Notifier FSP-851T Smoke and Heat Detector

The Notifier FSP-851T is a smoke detector designed for compatible Notifier fire alarm systems. It provides dependable smoke detection for a wide range of commercial and institutional applications.

The detector features automatic sensitivity monitoring, rotary decimal addressing, dual status LEDs, and a plug-in design that simplifies installation and maintenance. This product is intended exclusively for fire alarm installations.

Product Functions

• Detects airborne smoke
• Reports fire alarm conditions
• Monitors detector sensitivity
• Supports automatic maintenance supervision
• Plug-in detector installation
• LED status indication

Electrical & System Information

The FSP-851T operates on compatible Notifier signaling line circuits with an operating voltage range of 15–32 VDC. Rotary decimal switches allow local device addressing, while the connected fire alarm control panel continuously supervises detector status and sensitivity.

Features

• Smoke detection
• Automatic sensitivity monitoring
• Rotary decimal addressing
• Dual LEDs with 360° visibility
• Plug-in detector head
• Magnetic functional test
• Low-profile housing
• Remote LED support
• Indoor application

Mounting & Design

The FSP-851T installs on compatible Notifier detector bases including B210LP, B501, B200S, B200SR, B224RB, and B224BI. Its removable detector head allows efficient installation, inspection, testing, cleaning, and replacement without disturbing field wiring.

Protection & Applications

Suitable for:

• Office Buildings
• Schools
• Hospitals
• Hotels
• Warehouses
• Industrial Facilities
• Government Buildings
• Retail Centers
• Properties

Compatibility

Compatible with:

• Notifier ONYX Fire Alarm Control Panels
• FlashScan Signaling Line Circuits
• CLIP Compatible Systems
• B210LP Detector Base
• B501 Detector Base
• B200S Sounder Base
• B200SR Sounder Relay Base
• B224RB Relay Base
• B224BI Isolator Base
• RA400Z Remote LED Annunciator

Always verify compatibility with the installed fire alarm control panel and detector base before installation.

Technical Specifications

Manufacturer: Notifier

Parent Company: Honeywell

Model: FSP-851T

Product Type: Smoke Detector

Smoke Detection: Smoke Sensing Chamber

Operating Voltage: 15–32 VDC

Typical Standby Current: 300 µA @ 24 VDC

Maximum Alarm Current: 6.5 mA @ 24 VDC

Operating Temperature: 32°F to 100°F (0°C to 38°C)

Operating Humidity: 10%–93% RH Non-Condensing

Air Velocity: 0–4,000 ft/min

Status Indicators: Dual LEDs

Addressing: Rotary Decimal Switches

Mounting: Compatible Notifier Detector Bases

Application: Indoor Fire Alarm Systems

Listings: UL 268, ULC, FM Approved, CSFM Listed (application dependent).

Applications

The Notifier FSP-851T is designed for fire alarm systems requiring dependable smoke detection. It is commonly installed in office buildings, schools, hospitals, warehouses, industrial facilities, hotels, retail centers, and other occupancies using compatible Notifier fire alarm equipment.

FSP-851T Datasheet