Collection: Fire Alarm Detectors
Fire Alarm Detectors — Addressable & Conventional Smoke, Heat and Multi-Sensor Detectors
Genuine fire alarm detectors from Gent and Notifier by Honeywell, covering addressable and conventional detection. The range spans the Gent S-Quad (S4) series, Notifier's Opal addressable range, Gent ES conventional detectors, projected beam detection and duct detector housings.
All detectors are EN54 approved and suitable for UK commercial installations designed to BS 5839-1. Whether you're replacing a faulty head or extending an existing system, we can source the part as a Honeywell Technologies authorised distributor.
- Gent S-Quad addressable — optical (S4-715), heat (S4-720), optical heat (S4-710), dual optical heat (S4-711) and CO multi-sensor (S4-901)
- Gent S-Quad detector/sounder and detector/VAD combination units, including the S4-770-S optical heat sensor with sounder
- Notifier Opal addressable — NFXI-OPT optical, NFXI-SMT3 and SMT2-BK multi-sensor, NFXI-TFIX58 and NFXI-TDIFF heat
- Gent ES conventional — optical smoke (800371), fixed heat (800171, 800177) and rate of rise (800271)
- Projected beam smoke detection for large open spaces
- Duct detector housings for HVAC applications (Gent S4-34760, Notifier DNRE)
Detector bases, beam brackets, light shields and test cards are listed separately in Accessories & Spares.
Testing detectors on large or hard-to-reach sites? Read our guide to Honeywell Self-Test detectors (Gent S4T and Notifier NFSTI), which test themselves with real smoke and heat from the CLSS app.
Genuine Gent, Notifier and Morley IAS parts supplied direct from Honeywell Technologies. Stocked lines ordered before 2pm are dispatched the same working day. Items not held in stock are ordered in from Honeywell and typically dispatched within 3–5 working days. As a Honeywell Technologies authorised distributor, we can source the full product range — contact us if you need a lead time confirmed before ordering.
