Simplex 4098-9773

Simplex 4098-9773 TrueAlarm CO Sensor Base with 520 Hz Sounder

Enhance your fire and life safety system with the Simplex 4098-9773, an intelligent addressable CO sensor base equipped with a 520 Hz low-frequency sounder. Designed for use with Simplex TrueAlarm sensors, this device provides advanced carbon monoxide monitoring and audible notification in compliance with NFPA 72 low-frequency sound requirements for sleeping areas.

Key Features

• Integrated CO Detection: Combines an electrolytic CO sensing module with a TrueAlarm analog sensor, offering comprehensive monitoring using a single system address.

• 520 Hz Low-Frequency Sounder: Delivers an 85 dBA output at 10 feet, meeting NFPA 72 standards for sleeping areas and ensuring effective occupant notification.

• Addressable Communication: Utilizes IDNet protocol for precise identification and monitoring within the fire alarm system.

• Compatible Sensor Heads: Supports the following sensor heads (ordered separately):

  • 4098-9714 Photoelectric Smoke Sensor

  • 4098-9754 Multi-Sensor Photoelectric and Heat Sensor

  • 4098-9733 Heat Sensor

• Flexible Power Options: The sounder can be powered via a supervised 24 VDC auxiliary line or a compatible NAC circuit, allowing synchronized coding patterns such as temporal or march time.

• Advanced Detection Modes: Offers independent sensor operation or selectable multi-sensor modes to reduce false alarms and provide faster detection.

• CO Sensor Monitoring: Provides real-time CO concentration readings in ppm, with programmable thresholds for OSHA-compliant ventilation control and toxic gas detection.

• Maintenance-Friendly Design: Features a base-mounted address selection, allowing the address to remain with its location when the sensor is removed for service or replacement.

• Regulatory Compliance: Listed to UL 268, UL 464, UL 2075, ULC-S529, and CSA 6.19-01 standards, ensuring adherence to industry regulations.