features and functions

1. Advanced photoelectric smoke sensing technology
2. Durable sensor head; excellent smoke access
3. Ar (auto reset) function for security systems,(optional for 4 wire models)
4. Both n/c (normal/close)-n/o (normal/open) relay dry contact output
5. Easy installation and maintenance
6. Modern design (white and beige colors)
7. Five-year limited warranty
8. Alarm freq. :3~5 SEC.
9. Comply with en54 and CE