System Sensor 2151 Smoke Detector

The System Sensor 2151 is a commercial smoke detector designed for use with compatible conventional fire alarm systems. Its low-profile design and advanced smoke sensing chamber provide dependable smoke detection while minimizing nuisance alarms caused by common environmental conditions.

The detector features dual status LEDs, plug-in installation, tamper-resistant capability, removable insect screening, and built-in magnetic testing for simplified maintenance and reliable long-term performance. This product is intended exclusively for commercial fire alarm installations.

Product Functions

• Detects airborne smoke
• Initiates fire alarm conditions through a compatible control panel
• Provides continuous smoke monitoring
• Dual LED status indication
• Magnetic functional testing
• Supports remote LED annunciation
• Simplifies routine inspection and maintenance

Electrical & System Information

The System Sensor 2151 is a conventional smoke detector designed for use with compatible detector bases and listed conventional fire alarm control panels. Operating characteristics depend on the selected mounting base, allowing installation in various 2-wire or 4-wire system configurations.

The detector incorporates a low-current sensing circuit, removable smoke chamber screen, and built-in test switch to support reliable operation and simplified servicing.

Features

• Commercial smoke detector
• Low-profile housing
• Photoelectric smoke sensing
• Dual 360° visible LEDs
• Plug-in detector design
• Built-in magnetic test switch
• Tamper-resistant feature
• Removable insect screen
• Remote LED annunciator compatibility
• Stable performance in high air velocities

Mounting & Design

The 2151 installs onto compatible System Sensor detector bases using a plug-in design that allows quick installation, cleaning, testing, and replacement without disturbing field wiring.

The detector mounts to standard electrical boxes through the selected compatible base and includes a removable cover for routine maintenance.

Protection & Applications

Suitable for:

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

Compatibility

Compatible with:

• Conventional Fire Alarm Control Panels
• B110LP Detector Base
• B112LP Detector Base
• B114LP Detector Base
• B114LPBT Detector Base
• B116LP Detector Base
• B401 Detector Base
• RA400Z Remote LED Annunciator
• SENS-RDR Sensitivity Reader

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

Technical Specifications

Manufacturer: System Sensor

Parent Company: Honeywell

Model: 2151

Product Type: Commercial Smoke Detector

Detection Method: Photoelectric Smoke Sensing

Sensitivity: 1.0–3.18% Obscuration per Foot

Typical Standby Current: 120 µA (with compatible B110LP base)

Status Indicators: Dual LEDs with 360° Visibility

Testing: Built-In Magnetic Test Switch

Remote Annunciator: Supported

Construction: Low-Profile Plug-In Design

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

Operating Humidity: Up to 95% RH, Non-Condensing

Mounting: Compatible System Sensor Detector Base Required

Application: Indoor Commercial Fire Alarm Systems

Listings: UL, ULC, FM, CSFM, and MEA (application dependent).

Applications

The System Sensor 2151 is designed for commercial fire alarm systems requiring dependable smoke detection in open-area applications. Typical installations include office buildings, schools, hospitals, hotels, retail facilities, warehouses, government buildings, industrial properties, and other commercial occupancies where compatible conventional fire alarm systems are installed.

2151 Datasheet