S4-771-S Gent Optical Heat Multisensor

Gent S4-771-S

Technical Specifications:

 The Gent S4-771-S is a high-performance gent optical heat multisensor with a built-in sounder and short circuit isolator, specifically designed for addressable fire alarm systems.

Combining rapid smoke detection with reliable heat sensing, this compact unit delivers exceptional performance across various building types—making it a cornerstone of advanced fire protection strategies.

S4-771-S Product Overview?

When you're designing or upgrading a life safety system, it’s critical to choose products that are robust, adaptable, and compliant. The Gent S4-771-S meets those demands and more.

Trusted across the UK in commercial, public, and industrial settings, it belongs to the renowned Honeywell Gent range—known for innovation in fire detection technology.

Whether you're a contractor, engineer, or facilities manager, this device offers the reliability and advanced detection performance that only dual optical and heat multi-sensor technology can provide.

Features and Benefits of 

• Dual Optical & Heat Sensing – Rapid and accurate detection of both smoke and sudden temperature increases.

• Built-in Sounder – Reduces need for external alarm units, cutting installation time and costs.

• Short Circuit Isolator – Enhances overall system reliability and resilience.

• Fully Programmable – Tone and volume settings can be customised via compatible panels.

• LPCB Certified – Independently tested and approved to meet stringent fire safety standards.

• Easy Maintenance – Works seamlessly with tools like Solo 100 testing poles.

If you’re looking for a flexible and compliant gent heat multi sensor, the S4-771-S is hard to beat.

Compatible Products & System Integrations

To get the most out of your Gent S4-771-S, pair it with these essential components from our store:

• S4-770-S Sounder VAD – For visual and audible alerts in large or noisy environments.

• S4-715-S Optical Detector – Another detector in the S-Quad range for zone expansion.

• S4-700 Common Base – Compatible base for all S-Quad devices, ensuring quick installation.

• S4-710 Optical Heat Detector – A close relative to the 771s, ideal for varying environments.

• Vigilon Compact Control Panel – 1-2 loop addressable panel that seamlessly supports the dual 771 device.

📎 Need help building a complete system? Visit our homepage to browse the full catalogue or contact our expert support team.

Installation & Use Case Scenarios

The gent S4 771 S has been deployed in a wide range of environments, including:

• Schools & Universities – Where large foot traffic demands high-speed detection.

• Healthcare Facilities – Where precision and early warning are vital.

• Industrial Sites – Where multi-sensor detectors help reduce false alarms from dust or vapours.

• Retail Complexes – Where reliable coverage and discreet design matter.

Its compatibility with Honeywell’s Vigilon systems ensures it integrates effortlessly into both new and existing fire alarm infrastructures.

“We’ve used the Gent S4-771-S across several retail developments, and the performance has been faultless.” — UK Fire Contractor

Additional information:

FAQ – Everything You Want to Know

What is the difference between S4-771-S and S4-711?

The S4-771-S includes a built-in sounder, whereas the S4-711 does not. Both use dual optical heat sensing, but the 771s is ideal where audible notification is also required.

Is the S4-771-S compatible with older Gent panels?

It is fully compatible with Vigilon addressable systems. For legacy systems, consult your panel's manual or contact our tech team.

How do I test the Gent S4-771-S?

Use approved testing tools like the Solo range or Testifire Detector Testers for routine inspections and compliance checks.

Can I silence the sounder?

Yes, the built-in sounder is programmable and can be silenced or adjusted via the fire panel controls.

Does this come with a base?

No, it is sold separately. Be sure to pair with the S4-700 Common Base for installation.