Gent S4-770-S | Optical and Heat Sensor With Sounder
£77.62 + VAT
The Gent S4-770-S Optical Heat Multisensor and Sounder is a versatile analogue addressable multisensor for Gent Vigilon fire alarm systems. This intelligent device combines optical smoke and heat detection with an integrated, adjustable sounder. Its patented dual-angle optical technology reduces false alarms from steam and dust, making it ideal for various challenging environments. The unit also features programmable detection modes and time-based sensitivity adjustments.
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
