Description
The System Sensor D4S is a 4-wire photoelectric sensor head designed for use with compatible System Sensor duct smoke detector housings. This component-only unit provides the sensing element required to detect smoke within HVAC duct systems, utilizing photoelectric technology to identify visible combustion particles in the airflow. The D4S is intended for replacement or maintenance applications where only the sensor head needs to be serviced, allowing continued use of the existing detector housing and accessories. It is commonly used in commercial and industrial HVAC systems to maintain reliable smoke detection performance.
Key Features:
- 4-wire photoelectric sensor head (component only)
- Designed for use with compatible System Sensor duct detector housings
- Detects smoke particles within HVAC airflow
- Ideal for replacement and maintenance applications
- Helps maintain reliable duct smoke detection performance
- Easy installation into existing detector assemblies
- Suitable for commercial and industrial HVAC systems
- Supports ongoing fire protection system reliability
