Fire-Lite SD365 Smoke Detector by Honeywell – Addressable, Twist-Lock Base

Overview

The FireLite SD365 by Honeywell blends performance with modern design as a contemporary replacement for the SD355 series. Engineered for use with FireLite’s addressable fire alarm panels, this detector balances reliable sensing with an aesthetically refined housing. Its advanced optical chamber aims to detect smoke from a wide range of combustion sources while aligning with current code expectations. Two LEDs on the face provide immediate local indication, helping occupants and technicians gauge status at a glance. By supporting precise detector location through addressable features, the SD365 helps responders quickly identify the source during early fire stages, potentially reducing response time and property impact.

Key Benefits

• Early warning with a sensitive, photoelectric sensing chamber for varied smoke sources.
• Minimized nuisance alarms from cooking smoke or steam due to discriminating sensing.
• Clear local status with two LEDs for on-site visibility during inspections or events.
• Addressable precision: rotary decimal address switches enable exact detector location on compatible panels.
• Modern, unobtrusive design suitable for commercial and residential spaces.

Technical Highlights

• UL Listed and NFPA 72 compliant, supporting regulatory safety requirements.
• Twist-lock base design allows quick mounting and straightforward detector replacement without rewiring.
• Exclusively for use with FireLite addressable fire alarm control panels, enabling integrated system management.

Options and Compatibility

The SD365 family offers targeted enhancements for specific environments. The SD365T(A) variant adds a fixed 135°F (57°C) thermal sensing option for high-heat spaces, while the SD365R(A) variant supports remote test capability for duct detector housings (DNR/DNRW). These options provide flexibility to tailor sensing to the site while preserving compatibility with the core FireLite addressable ecosystem.

Installation and Use Scenarios

With its streamlined installation and maintenance workflow, technicians can mount or replace detectors quickly, reducing downtime in busy facilities. The dual-LED indicator, precise addressable location, and clean, contemporary styling make the SD365 suitable for offices, retail spaces, medical suites, and other areas where early detection and reliable maintenance visibility are important.

At a glance

• Designed for FireLite addressable panels
• Enhanced optical sensing for early smoke detection
• Two local status LEDs
• Twist-lock base for fast installation
• Optional SD365T thermal sensing and SD365R remote test