System Sensor 2151 Low-Profile Plug-in Smoke Detectors

The System Sensor 2151 is a low-profile, plug-in photoelectric smoke detector designed for reliable fire detection. Its sealed sensing chamber prevents back pressure airflow, while the top-covered one-piece molded screen helps minimize dirt and insect intrusion. The screen is removable for cleaning.

This model features a unique optical sensing system and a custom integrated circuit that reduces false alarms. It is compatible with the 400 series mounting bases and offers 360-degree visibility through two blinking LEDs in standby mode. Additional accessories and a broad adapter with a built-in shorting spring are also available.