System Sensor 2151

The System Sensor 2151 is a photoelectric, low-profile, plug-in smoke detector designed for air-handling applications where airflow is minimal. It’s ideal for use in no-flow or low-flow duct systems, where reliable smoke detection is still required. The 2151 features a compact housing and a removable head that twists on and off for easy cleaning and maintenance, reducing service time and ensuring long-term performance.

This detector is designed to work with compatible System Sensor bases, such as the System Sensor B114LP 120VAC base and the System Sensor B114LPBT 24VAC/DC base. The locking mechanism ensures secure attachment while allowing easy removal for inspection. Its plug-in design helps simplify installation in both new and retrofit systems.

The 2151 can be installed in a standard electrical box and mounted in pendant configuration for use within ducts. It integrates easily with fire alarm control panels and supports system supervision features to maintain detection integrity. For more installation and compatibility details, refer to System Sensor smoke detectors on Alarm Grid.

Specifications:

• Model: System Sensor 2151
• Detector Type: Photoelectric, plug-in smoke detector
• Applications: No-flow or low-flow air-handling systems
• Operating Voltage: Dependent on base (B114LP 120VAC or B114LPBT 24VAC/DC)
• Head Design: Low-profile, twist-in/twist-out plug-in head
• Base Compatibility: B114LP, B114LPBT
• Mounting: Pendant mount in standard electrical box within duct
• Maintenance: Removable head for easy cleaning and service
• Construction: Flame-retardant plastic housing
• Certifications: UL Listed for smoke detection use