4-Wire Optical Smoke Detector with Relay Output Function.

Model SNC-300-SR smoke detector uses a specialized smoke chamber design, which could sense the presence of smoke particles produced by fast combustion or slow smoldering fire.

The SNC-300-SR detectors have a integral relay, connected between the L1 OUT(6) terminal and the –R(3) terminal, its provide one set of volt-free changeover (form A) contacts change state when the detector signals an alarm. The detector will work with most modern fire alarm control panels.

Features:

• 4-Wire operation; 
• built-in alarm relay;
• wide operating voltage;
• advanced electronic technology;
• proven detection performance;
• designed to meet approvals worldwide (e.g. UL LPCB CE).

You can find the product by unique code: SNC-300-SR.