The 4W-B is a 4-wire Photoelectric smoke detector. All models incorporate a state-of-the-art optical sensing chamber.

Features

• Plug-in detector line – mounting base included
• Large wire entry port
• In-line terminals with SEMS screws
• Mounts to octagonal and single-gang backboxes, 4-square backboxes, or direct to ceiling
• Stop-Drop ’N Lock™ attachment to base
• Removable detector cover and chamber for easy cleaning
• Built-in remote maintenance signaling
• Drift compensation and smoothing algorithms
• Simplified sensitivity measurement
• Wide angle, dual colour LED indication
• Loop testing via EZ Walk feature
• Built-in test switch