Smoke detector SD355(A)/SD355T(A)

Fire-Lite’s SD355 and SD355T addressable, low-profile, plug-in photoelectric detectors use a state of the art photoelectric sensing chamber to provide open area protection and are used exclusively with the MS-9050UD, MS-9200UDLS, and MS-9600(UD)LS Addressable Fire Alarm Control Panels. The SD355T adds thermal sensors that will alarm at a fixed temperature of 135F (57C). Unique single-source, dual-chamber design to respond quickly and dependably to a broad range of fires. Sleek, low-profile design. Integral communications and built-in type identification. Built-in tamper-resistant feature. Removable cover and insect-resistant screen for simple field cleaning. Withstands air velocities up to 4,000 feet-per-minute (20 m/sec.) without triggering a false alarm. Factory preset at 1.5% nominal sensitivity for panel alarm threshold level. Visible LED blinks when the unit is addressed (communicating with the fire panel) and latches on in alarm. Direct surface mounting or electrical box mounting. Mounts to: single-gang box or square electrical box