Simplex 4098-9771 Fire Alarm CO Detector Sounder Base - This professional-grade sounder base provides integrated carbon monoxide detection and audible signaling for life-safety systems. - Operating voltage: 15V to 32V DC - Current draw: 150µA nominal standby - Integrated sounder output: 85 dBA at 10 feet - Compatible detector series: Simplex 4098 TrueAlarm - Mounting interface: Standard 4-inch square or octagonal boxes

Engineered to surpass standard base performance, the Simplex 4098-9771 offers a streamlined solution for modern fire and life-safety infrastructure. Unlike earlier generation bases that required separate modules for local audible notification, this unit combines detection and sounding capabilities into a single, compact footprint to reduce installation complexity and improve system response time.

Advanced Detection and Signaling Architecture

The 4098-9771 utilizes high-precision sensor technology to ensure reliable CO detection while maintaining strict synchronization with the primary fire alarm control panel. By leveraging a low-profile design, this base fits seamlessly into existing system layouts, providing clear, audible warnings that adhere to current NFPA life-safety standards. Its robust internal circuitry is designed for long-term stability in high-demand environments, ensuring that every signal is processed with minimal latency for maximum facility protection.