DP721I Aritech
- Code / Model: DP721I
- Manufacturer: Aritech
- Department: Safe working environment
- Category of products: Fire protection
- Sub-category: Fire and humidity detectors
- You've seen it before.: 1
Optical Smoke Detector
The optical smoke detector is a common type of fire alarm that uses light to detect smoke particles in the air.
It works by shining a beam of light through a chamber. If smoke enters the chamber, it scatters the light, causing the detector to trigger an alarm.