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Gent S4-711 S-Quad Optical Heat Detector
The Gent S4-711 is a professional analogue addressable optical heat detector from the S-Quad range, designed for accurate multi-criteria fire detection within Gent Vigilon and Compact fire alarm systems.
Often referenced as gent s4 711, gent s4-711, or s4-711 gent, this detector combines advanced sensing methods to improve response while reducing unwanted alarms.
Built for commercial and industrial fire alarm installations, the S4-711 uses dual optical sensing and heat response — often described as a smoke and heat detector combination — to deliver dependable performance across varied fire conditions.
Manufactured by Honeywell Gent, the S4-711 is intended for certified fire alarm system installation and like-for-like detector replacement.
Key Benefits
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Multi-criteria detection – Optical and heat sensing in one device
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Dual angle optical scatter technology – Improved smoke discrimination
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Reduced false alarms – Better filtering of non-fire phenomena
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Addressable intelligence – Precise panel communication
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Gent Vigilon compatibility – Designed for S-Quad loop systems
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Low maintenance design – Suitable for long-term installations
The gent optical heat detector design is widely used where single-sensor devices may be more prone to unwanted alarms.
Technical Specifications
To support system planning and replacement verification, here are the core specifications of the S4-711:
| Specification | Details |
|---|---|
| Model | S4-711 |
| Detector Type | Optical Heat Detector |
| Detection Method | Dual Optical + Heat |
| Optical Principle | Dual angle optical scatter |
| System Type | Analogue Addressable |
| Operating Voltage | 18V – 28V |
| Operating Temperature | -10°C to +50°C |
| Certification | EN54, LPCB |
| Base Compatibility | S4-700 Common Base |
Always confirm system compatibility before ordering.
Key Features
Dual Optical Sensing
Uses dual optical measurement for improved particle detection and alarm accuracy.
Integrated Heat Response
Thermal sensing supports faster recognition of developing fire conditions.
Multi-Sensor Operation
Designed as a smoke and heat detector combination for broader detection coverage.
Addressable S-Quad Platform
Part of the S4 detector platform, enabling intelligent device identification and status reporting.
Loop Communication
Provides continuous status feedback to the fire alarm control panel.
Installation & Maintenance
The gent s4-711 installs using the S4-700 common detector base, allowing consistent mounting across S-Quad systems and simplifying maintenance stock holding.
Installation should be carried out by a qualified fire alarm engineer in accordance with manufacturer guidance and site standards.
After installation:
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Confirm device addressing
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Test detector activation
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Verify loop communication
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Record location text at the panel
Routine functional testing should follow scheduled maintenance procedures.
Compliance & Certification
The gent s4 711 optical heat detector is approved to recognised fire detection standards, including:
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EN54 certification
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LPCB approval
Suitable for regulated gents fire alarm installations across the UK and Europe.
Ideal Applications
The s4-711 is commonly specified in:
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Commercial buildings
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Education facilities
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Healthcare premises
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Retail environments
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Industrial spaces
Particularly useful where dual angle optical scatter and heat sensing improve detection reliability.
Need Help?
If you need help confirming whether the Gent S4-711 is correct for your system, Fire Trade Supplies can provide technical guidance before purchase.
Datasheet