System Sensor 7351AUS High Sensitivity Photoelectric Smoke Detector – Intelligent Addressable VEWFD Detector

The System Sensor 7351AUS is an intelligent high sensitivity photoelectric smoke detector designed to provide very early warning fire detection (VEWFD) for compatible addressable fire alarm systems. Engineered for environments where rapid smoke detection is essential, the detector combines advanced optical sensing technology with programmable sensitivity to deliver reliable fire protection while helping to minimise unwanted alarms.

Featuring Point ID capability and rotary address switches, the 7351AUS enables each detector to be individually identified and continuously monitored by the fire alarm control panel. Nine programmable sensitivity levels allow the detector to be configured to suit a wide range of environmental conditions, making it ideal for applications requiring enhanced detection performance.

The detector incorporates automatic drift compensation to maintain consistent sensitivity as dust accumulates within the sensing chamber, while multi-level maintenance alerts notify maintenance personnel when servicing is required. Dual LEDs provide clear 360° visual indication of detector status and alarm conditions, simplifying system inspection and fault identification.

Compatible with approved System Sensor addressable detector bases, the 7351AUS is suitable for both open-area protection and approved duct smoke detection applications when installed with the appropriate duct housing.

Key Features:

• Intelligent high sensitivity photoelectric smoke detector
• Designed for Very Early Warning Fire Detection (VEWFD)
• Advanced optical sensing technology
• Point ID capability for precise device identification
• Nine programmable sensitivity levels
• Sensitivity range of 0.02% to 2.0% obscuration per foot
• Automatic drift compensation with maintenance alerts
• Rotary address switches for simple addressing
• Dual LEDs with 360° visibility
• 15–32 VDC operating voltage
• Suitable for open-area and approved duct detection applications
• Compatible with approved System Sensor addressable detector bases

Typical Applications:

• Data centres and server rooms
• Telecommunications facilities
• Hospitals and healthcare facilities
• Clean rooms and laboratories
• Museums and archives
• Commercial office buildings
• Control rooms
• Critical infrastructure requiring very early fire detection