[{"id":300292145217,"handle":"combination-detectors","title":"Combination Detectors","updated_at":"2026-06-03T18:29:34-05:00","body_html":"\u003cp\u003eShop our selection of combination fire and life safety detectors that provide multi-function protection in a single device. Our inventory includes photoelectric smoke\/heat combination detectors from Potter for fire alarm systems, smoke and carbon monoxide (CO) combination alarms from BRK with hardwired interconnect and battery backup, and multi-criteria smoke alarms from Gentex. Combination detectors offer space-saving installation and comprehensive protection against multiple hazards including fire, smoke, heat, and carbon monoxide. Available in addressable models for commercial fire alarm systems and standalone units for residential applications. UL-listed devices essential for complete life safety protection in homes, apartments, hotels, and commercial buildings.\u003c\/p\u003e","published_at":"2026-01-08T12:18:01-06:00","sort_order":"best-selling","template_suffix":"abc","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"Fire \u003e Fire Detection Devices \u003e Combination Detectors"}],"published_scope":"global","image":{"created_at":"2026-01-12T08:12:04-06:00","alt":null,"width":500,"height":500,"src":"\/\/www.fireandsafetyplus.com\/cdn\/shop\/collections\/05de2298-BR-1046890.jpg?v=1768227124"}},{"id":301752516673,"handle":"fire-detection-devices","title":"Fire Detection Devices","updated_at":"2026-06-04T02:48:24-05:00","body_html":"","published_at":"2026-02-13T11:02:14-06:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Fire \u003e Fire Detection Devices"}],"published_scope":"global"},{"id":301937950785,"handle":"quick-order","title":"Quick Order","updated_at":"2026-06-04T10:32:15-05:00","body_html":null,"published_at":"2026-02-18T13:35:25-06:00","sort_order":"best-selling","template_suffix":"quick","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"}]
["7.83863E+11","Fire \u003e Fire Detection Devices","Fire \u003e Fire Detection Devices \u003e Combination Detectors"]
The 4WT-B is a 4-wire, photoelectric i3 smoke detector with a 135°F fixed thermal sensor. System Sensor i3 ™ series smoke detectors represent significant advancement in conventional detection. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection. The i3 line redefines installation ease with its plug-in design. This allows an installer to pre-wire bases (included with heads). The large wire entry port and in-line terminals provide ample room for neatly routing the wiring inside the base. The base accommodates a variety of back box mounting methods as well as direct mounting with drywall anchors.
To complete the installation, i3 heads plug into the base with a simple Stop-Drop ’N Lock™ action. i3 detectors offer a number of intelligent features to simplify testing and maintenance. Drift compensation and smoothing algorithms are standard with the i3 line to minimize nuisance alarms. 2-wire i3 detectors can generate a remote LED indicated maintenance signal when connected to the 2W-MOD2 loop test/maintenance module or a panel equipped with the i3 protocol. The SENS-RDR, a wireless device, displays the sensitivity of i3 detectors in terms of percent-per-foot obscuration.
Main Features
Plug-in detector line, mounting base included
Large wire entry port
In-line terminals with SEMS screws
Mounts to octagonal and single-gang back boxes, 4-square back boxes, or direct to ceiling
Stop-Drop ’N Lock attachment to base
Removable detector cover and chamber
Built-in remote maintenance signaling
Drift compensation and smoothing algorithms
Simplified sensitivity measurement
Wide-angle, dual-color LED indication
Loop testing via EZ Walk feature
Built-in test switch
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