S4 Dual Optical Heat Sensor Voice Sounder

Stock Code: S4-711-V

The S-Quad range of multifunction devices combines advanced sensors with integrated sounder, speech, and EN54-23 certified visual alarms, offering designers maximum flexibility in providing comprehensive building coverage. These devices enhance fire detection with highly visible visual alerts and recorded voice messages to ensure all occupants are promptly informed during an emergency.

The innovative design integrates the LED visual alarm into the center of the sensor, with the sounder and speech circuitry housed internally, delivering a compact and aesthetically pleasing solution for multifunction devices.

Visual alarms and voice messages are synchronized across each control panel, ensuring clear and unambiguous notifications throughout the building.

Key Features:

  • Comprehensive range of sensors combining heat, dual-angle optical scatter, and carbon monoxide (CO) detection

  • Combined CO, dual-angle optical scatter, and heat detection provides enhanced immunity to false alarms from steam while maintaining reliable fire detection

  • Certified sensitivity settings for different environments and applications, with programmable time-based adjustments

  • Built-in short-circuit isolator in each device

  • Configurable input/output connections for remote indicators or supervisory inputs

  • Fully synchronized sound patterns via the control panel

  • Adjustable sound levels and tones to match system requirements

  • Sounder monitoring and overload protection to ensure operation even in the event of a cable fault

  • Sound output synchronized and compatible with the S-Quad range of EN54-23 VADs

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