Description
Gent S4-715 S-Quad Optical Smoke Detector
The Gent S4-715 is a professional analogue addressable optical smoke detector from the S-Quad range, designed for accurate and reliable fire detection within Gent Vigilon fire alarm systems.
Engineered for commercial and industrial fire alarm installations, the S4-715 provides early smoke detection while minimising false alarms caused by dust, steam, or environmental interference. It is suitable for both new system installations and like-for-like detector replacements in existing Gent systems.
Key Benefits
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Accurate optical smoke detection – Rapid response to developing fires
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Reduced false alarms – Advanced optical sensing technology
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Vigilon system compatibility – Designed for Gent analogue addressable panels
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Built-in short circuit isolator – Maintains loop integrity during faults
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Low maintenance design – Ideal for long-term commercial installations
This Gent smoke detector is built for repeatable performance across large fire alarm systems where reliability, compliance, and system resilience are critical.
Technical Specifications
To help with planning and installation, here are the key specifications of the S4-715 Optical Sensor:
| Specification | Details |
|---|---|
| Operating Voltage | 35V - 41V |
| Operating Temperature | -10°C to +50°C |
| Diameter | 117mm |
| Height | 49.6mm (63.8mm with base) |
| Weight | 110g (170g with base) |
| IP Rating | IP30 |
These specs make the S4-715 ideal for deployment in diverse indoor environments where accurate smoke detection is essential.
Key Features
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Advanced Optical Sensing Technology
Detects smoke particles efficiently while reducing nuisance alarms. -
Integrated Short Circuit Isolator
Automatically isolates faults to protect the remainder of the detection loop. -
Programmable Sensitivity Settings
Certified sensitivity states allow adaptation to different risk environments. -
Configurable Input / Output Connections
Supports remote indicators and supervisory inputs where required. -
Gent Vigilon Compatibility
Fully compatible with Vigilon fire alarm control panels for intelligent system monitoring.
Installation & Maintenance
The S4-715 installs quickly using the S4-700 common detector base, shared across the Gent S-Quad detector range. This simplifies installation, reduces spare part requirements, and allows straightforward detector replacement during upgrades or maintenance.
Once installed, the detector requires minimal ongoing maintenance, supported by intelligent system diagnostics that assist servicing and fault identification.
Compliance & Certification
The Gent S4-715 is LPCB approved and fully compliant with EN54-7 (Optical Smoke Detectors) and EN54-17 (Short Circuit Isolators). It is suitable for professional fire alarm installations across the UK and Europe.
Ideal Applications
The S4-715 optical smoke detector is commonly used in:
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Offices and commercial buildings
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Schools, colleges, and universities
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Hospitals and healthcare environments
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Warehouses and industrial facilities
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Mixed-use and large-scale developments
Need Help?
If you’re unsure whether the Gent S4-715 smoke detector is suitable for your system or replacement requirements, the team at Fire Trade Supplies is available to provide expert technical advice and product support.


