Gent S4-780-S – Vigilon S-Quad Heat Detector with Integrated Sounder

The Gent S4-780-S is a high-performance addressable heat detector with integrated sounder, designed for use with the Vigilon S-Quad fire detection system. Combining rapid and reliable heat detection with clear audible alerts in one unit, it offers a space-saving, installation-friendly solution for commercial and public sector sites.
With programmable heat detection thresholds and flexible sounder settings, the Gent S4-780-S can be tailored to specific environmental risks, reducing false alarms without compromising safety. Its low-current, energy-efficient design incorporates soft start functionality for smoother activation and even sound distribution for consistent coverage.

Key Features & Benefits

• Advanced addressable heat detection technology.
• Built-in sounder for combined detection and alerting in one device.
• Programmable attention tones — bell (speech variants) or 12 standard tones.
• Choice of pre-recorded customisable speech messages, managed via the Vigilon panel.
• Fully synchronised sound patterns controlled through the fire control panel.
• Patent-protected harmonic sound output for superior clarity.
• Adjustable volume settings:
• Standard: 90 dBA @ 1m (typical).
• High-power: up to 98 dBA @ 1m.
• Soft start activation for reduced inrush current.
• Energy-efficient with low power usage.

Compliance & Standards

• EN54-compliant and fully compatible with the Gent Vigilon S-Quad range of addressable devices.

Gent S4-711 Dual Optical Heat Detector

The Gent S4-711 is a high-performance dual optical and heat detector, engineered for full compatibility with the Gent Vigilon range of analogue addressable fire control panels. Designed for accurate detection and minimal false alarms, it requires the Gent S4-700 base for installation.

This advanced analogue device uses local processing within both the detector and the control panel, enabling fast and reliable identification of genuine fire events while filtering out non-hazardous triggers.

By combining heat sensing, dual-angle optical scatter detection, and carbon monoxide (CO) sensing, the S4-711 offers exceptional immunity to false alarms caused by environmental conditions such as steam — without compromising detection integrity.

Key Features & Benefits

• Multi-sensor detection: Heat, dual-angle optical scatter, and CO sensing for accurate fire detection.
• False alarm resistance: Combined sensing technologies maintain performance in challenging environments.
• Custom sensitivity modes: Certified settings for specific applications, with optional time-based programming.
• Integrated short-circuit isolator for enhanced system safety.
• Flexible I/O connections for remote indicators or supervisory inputs, with synchronised sound patterns managed via the control panel.
• Adjustable sounder output: Selectable tones and volume levels to match system sounders.
• Sounder monitoring & overload protection ensures reliability even with cable faults.
• Compatible with S-Quad EN54-23 VADs for synchronised sound and visual alerts.

Gent S4 Dual Optical Heat Sensor with High Power Red VAD – Model S4-711-VAD-HPR

The S-Quad series delivers a versatile range of multifunctional fire detection devices, combining advanced sensors, integrated sounders, voice messaging, and EN54-23 certified visual alarm devices (VADs). Designed for comprehensive building protection, these units ensure clear, highly visible alerts alongside pre-recorded voice instructions for effective emergency communication.

With a compact, streamlined design, the central LED visual alarm is built directly into the sensor head, while the sounder and speech components are housed internally. This provides both a space-saving and visually appealing installation solution.

All visual and audible alerts are synchronized across connected control panels, ensuring consistent and intelligible messaging throughout a building. The Dual Optical Heat Sensor with High Power Red VAD offers a cost-effective solution for high-performance fire alarm signaling.

Key Features & Benefits

• Multi-technology detection – combines heat sensing, dual-angle optical scatter, and carbon monoxide (CO) monitoring for accurate fire detection.
• Reduced false alarms – CO and optical scatter sensors work with heat detection to maintain reliability even in challenging environments, such as steam-filled areas.
• Customizable sensitivity – certified and adjustable sensitivity settings tailored for different applications and times of day.
• Integrated short-circuit isolator – built into each Gent S4-711-VAD-HPR device for system resilience.
• Flexible input/output options – configurable for remote indicators or supervisory inputs, with sound patterns fully synchronized through the control panel.
• Adjustable sound output – selectable tones and volume settings for alignment with other system sounders.
• Built-in monitoring and overload protection – ensures the sounder remains operational even with cable faults.
• Full-range synchronization – sound and light output across all S-Quad EN54-23 VAD units remain perfectly aligned.

Gent S4-711-V-VAD-HPR | Dual Optical Heat Sensor with Voice Sounder & High-Power Red VAD

The Gent S4-711-V-VAD-HPR Dual Optical Heat Sensor with Voice Sounder & High-Power Red VAD – Model S4-711-V-VAD-HPR is a part of the S-Quad series. It brings together advanced sensing, audible alerts, speech capability, and EN54-23 certified visual alarm technology in one compact unit. This multi-functional design allows fire safety system designers to meet a variety of building coverage requirements with a single, elegant solution.

Using state-of-the-art detection technology, the S-Quad range ensures rapid and reliable emergency warning. Each device pairs a high-intensity visual alarm with pre-recorded voice announcements, ensuring clear and effective communication to all building occupants.

A distinctive design feature places the LED visual alarm centrally within the sensor, while housing both the sounder and speech electronics inside the same enclosure. The result is a neat, space-saving device that delivers both performance and aesthetic appeal.

To guarantee consistent messaging, all visual alarms and voice alerts are fully synchronised across the system, regardless of the control panel location.

Key Features & Benefits

• Advanced multi-sensor technology: Combines heat detection, dual-angle optical scatter, and carbon monoxide (CO) sensing for enhanced performance.
• Steam-resistant fire detection: Integrated CO, optical, and heat sensors work together to minimise false alarms without compromising detection accuracy.
• Custom sensitivity profiles: Each sensor can be programmed with certified settings for specific environments, and adjusted to match different times of day if required.
• Built-in safety isolators: Every unit includes short-circuit isolators as standard.
• Flexible input/output options: Configurable connections for remote indicators or supervisory inputs, with fully synchronised sound patterns controlled at panel level.
• Adjustable sound output: Multiple tones and volume levels available to match system sounders.
• Reliability in fault conditions: Integrated sounder monitoring and overload protection ensure operation even in the event of cable issues.
• Seamless system integration: Fully synchronised sound outputs compatible with the S-Quad EN54-23 certified VAD range.

Gent S4-711-V-VAD-LPR Dual Optical Heat Sensor with Voice Sounder & Low Power Red VAD

The Gent S4-711-V-VAD-LPR combines both dual optical smoke and heat detection in a single, precision-engineered device. Using Gent’s patented dual optical scatter technology, it provides fast and accurate fire detection while minimizing the risk of false alarms from environmental factors like steam or dust.

Designed for performance and efficiency, this model offers reliable fire detection and cost-effective alarm signaling. The integrated low-power red Visual Alarm Device (VAD) is EN54-23 compliant, guaranteeing visibility in various environments while using minimal energy. The Gent S4-711-V-VAD-LPR provides a robust and efficient fire safety solution.

Key Features & Benefits

• The Gent S4-711-V-VAD-LPR has dual optical & heat detection for enhanced fire detection accuracy.
• LPCB certified, ensuring compliance and proven reliability.
• Customisable sensitivity modes to suit different times of day or building conditions.
• Integrated short-circuit isolator for system protection.
• Programmable sounder with adjustable tones and volumes.
• EN54-23 compliant low-power red VAD with configurable settings.
• Speech alert capability supporting up to four distinct pre-recorded messages (20 seconds total).
• 85 dB sound output at 1 metre for clear, audible alerts.
• Monitored input/output connections for system supervision.
• Separate base unit supplied for flexible installation options.

Gent S4-715 Optical Detector

The Gent S4-715 is a high-performance analogue addressable smoke detector, engineered for seamless integration with the Gent Vigilon range of control panels. Designed as part of the advanced S-Quad family, it utilises dual-angle optical scatter technology to ensure accurate smoke detection while maintaining exceptional immunity to false alarms.
Ideal for a wide range of commercial, residential, and public buildings, the S4-715’s intelligent design combines local sensor processing with control panel algorithms to deliver rapid detection of genuine fires while filtering out common false triggers such as steam or dust.
The S-Quad optical detector can be configured with certified sensitivity settings tailored to specific environments. Time-of-day programming allows for adaptive detection, reducing the chance of nuisance alarms during high-activity periods. The detector also features a built-in short-circuit isolator for loop protection and provides flexible input/output options for system integration.

Key Features & Benefits

• Intelligent optical smoke detection with dual-angle scatter technology.
• Exceptional immunity to false alarms in challenging environments such as kitchens, shower areas, and industrial spaces.
• Programmable sensitivity levels and time-based modes to suit operational needs.
• Integrated short-circuit isolator for enhanced system reliability.
• Configurable input/output for remote indicators or supervisory integration.
• Fully compatible with EN54-23 visual alarm devices (VADs) in the S-Quad range.
• Works with Gent Vigilon analogue addressable fire alarm systems.

Compliance & Standards:

• EN54-7: Smoke Detectors – Point Detectors Using Scattered Light
• EN54-17: Short Circuit Isolators

Gent S4-720 Heat Detector – Vigilon S-Quad Range

The Gent S4-720 is a high-performance heat detector from the Vigilon S-Quad series, engineered for rapid and accurate fire detection. Its intelligent sensing technology is designed to detect real fire conditions quickly while minimising the risk of false alarms.

This model’s programmable features make it adaptable to a wide range of environments, with the ability to adjust sensitivity and operational modes for different times of day. Built to meet strict compliance standards, the S4-720 offers reliable protection in both commercial and public sector applications.

Key Features & Benefits

• Advanced multi-sensor technology: Compatible with systems that integrate heat detection, dual-angle optical scatter, and CO sensing.
• False alarm resistance: Maintains detection accuracy in challenging conditions such as steam.
• Custom sensitivity profiles: Certified settings for specific environments, with optional time-based adjustments.
• Integrated short-circuit isolator for improved system safety.
• Configurable I/O connections for remote indicators or supervisory inputs, synchronised with control panel sound patterns.
• High-performance heat sensing for reliable detection.
• LPCB certified for compliance and quality assurance.
• Programmable sensor modes for different operational periods.
• Monitored line I/O for enhanced operational reliability.
• Separate base unit required (sold separately).

Gent S4-720-V-VAD-HPR – Vigilon S-Quad Heat Sensor with Voice Sounder & High-Power Red VAD

The Gent S4-720-V-VAD-HPR is a multifunctional addressable heat detector with integrated voice sounder and high-power red Visual Alarm Device (VAD), part of the Vigilon S-Quad range. Combining advanced sensing technology, clear voice evacuation messages, and EN54-23-certified visual alerts in one streamlined unit, it delivers comprehensive protection for a wide range of building types.

Its innovative design positions the LED VAD centrally within the sensor while housing the sounder and speech circuits inside the same enclosure. This creates a compact, aesthetically pleasing device that is simple to install and blends seamlessly into modern interiors. During an emergency, visual and voice alerts are fully synchronised across all control panels, ensuring a consistent and intelligible evacuation signal for all occupants.

Key Features & Benefits

• Multifunctional device combining heat detection, voice sounder, and EN54-23 high-power red VAD.
• Advanced sensing technologies, including:
• Heat detection.
• Dual-angle optical scatter.
• Carbon monoxide (CO) sensing.
• Combined sensing modes improve false alarm immunity in challenging environments such as steam-filled areas.
• Certified sensitivity settings tailored to specific applications, programmable by time of day if required.
• Built-in short-circuit isolator in every device.
• Configurable I/O connections for remote indicators or supervisory inputs.
• Fully synchronised sound patterns controlled via the fire control panel.
• Adjustable sound levels and tones to match system sounders.
• Sounder element monitoring and overload protection for reliable operation even with cable faults.
• Sound output fully compatible with the S-Quad EN54-23-certified VAD range.

Compliance & Standards

• EN54-23 certified VAD, compliant with EN54 series fire detection standards, and fully compatible with Gent Vigilon S-Quad systems.

Gent S4-770-S Optical Heat Multisensor and Sounder

The Gent S4-770-S is a high-performance analogue addressable multisensor that combines optical smoke and heat detection in a single intelligent device, complete with an integrated sounder for reliable audible alerting. Designed for use with Gent Vigilon fire alarm systems, it delivers rapid, accurate fire detection while dramatically reducing nuisance activations.

At the heart of the S4-770-S is Gent’s patented dual-angle optical scatter technology, which enhances smoke detection performance and enables the sensor to filter out false alarm triggers such as steam or dust. This makes it ideally suited for challenging environments like kitchens, hospitality venues, leisure centres, or areas with fluctuating air quality.

As part of the advanced S-Quad range, the S4-770-S offers flexible programming, allowing combinations of optical, dual optical, heat, and carbon monoxide (CO) detection to be configured according to site-specific risks. Detection sensitivity can be adapted for different periods of the day to align with operational needs or environmental changes.

The integrated sounder provides a clear, consistent, and fully synchronized alert signal across the system, with adjustable volume and tone settings. Built-in overload protection, short-circuit isolation, and monitored connections ensure dependable operation even under adverse conditions.

Key Features & Benefits

• Combines optical smoke and heat detection in one unit for versatile fire sensing.
• Patented dual-angle optical scatter technology improves smoke detection and reduces false alarms from steam and dust.
• Programmable detection modes, including CO sensing, for tailored fire protection.
• Time-based sensitivity adjustments for specific site requirements.
• Built-in short-circuit isolator for enhanced system resilience.
• Integrated sounder with adjustable tones and volume.
• Sound output synchronized with the S-Quad EN54-23 Visual Alarm Device (VAD) range.
• Overload protection and monitored sounder element to maintain performance during cable faults.

Compliance & Standards:

• EN54-3: Fire Alarm Devices – Sounders
• EN54-5: Heat Detectors
• EN54-7: Smoke Detectors – Point Detectors Using Scattered Light

Gent S4-34740 Beam Sensor Pair (Transmitter and Receiver) – Excluding Bracket and Base

The S4-34740 Beam Sensor Pair is a high-performance linear beam detection solution for large, open areas where standard point detection isn't practical or is too expensive. This system is perfect for high-ceiling environments like warehouses, atriums, and sports halls. Because it's powered and controlled directly through the loop, it eliminates the need for separate power supplies and helps keep installation costs low.

Featuring advanced one-person alignment and commissioning using integrated auto gain settings, the S4-34740 ensures precise setup with minimal labour. A built-in key-operated test facility allows for easy simulation of fire conditions from ground level, significantly improving maintenance efficiency and safety.

Certified to EN54 Parts 12 and 17, this beam detector integrates seamlessly with Gent Vigilon and Nano fire alarm control panels. Its intelligent software filters minimise false alarms while ensuring rapid fire detection. The unit’s dust-resistant optical lens design also reduces cleaning requirements, further lowering long-term maintenance costs.

Key Features & Benefits

• Loop-powered design supports up to 16 beam pairs per loop.
• Six adjustable sensitivity levels to suit a wide range of applications.
• High resistance to false alarms from sunlight or artificial light sources.
• Remote key-switch testing eliminates the need for high-level access.
• LED array for live signal strength monitoring during commissioning.
• Auto gain settings ensure optimal alignment and ongoing reliability.
• Dust-resistant optics reduce the frequency of maintenance.
• Fully compatible with previous Vigilon beam models using the S-Quad programming base, avoiding software upgrade requirements.

Compliance & Standards

• EN54-12: Linear Beam Smoke Detectors
• EN54-17: Short Circuit Isolators
• CE and UKCA approved