Item NO:conventiona photoelectric smoke alarm RC500 series ProductName:smoke detector Detailed: Advanced photoelectric technology RC500 series optical smoke detectors RC500 series optical smoke detectors are designed to respond to a wide spectrum of fires and ease installation.

every unit is individually tested and calibrated to ensure high reliability and prevent false alarms. the range RC500-2 2-wire optical smoke detector----- RC500-2-led 2-wire optical smoke detector with remote led indicator output RC500-4 4-wire optical smoke detector with relay output features and benefits advanced photoelectric smoke sensing technology durable sensor head;

excellent smoke access ar (auto reset) function for security systems (optional for 4 wire models) n/c (normal/close)-n/o (normal/open) selectable relay output easy installation and maintenance modern design (white and beige colors) freq. :3~5 sec five-year limited warranty available options sensor base: standard and shottky diode remote led comply with en54 and CE