Fire detectors, Now-a-days SAFETY plays vital role in our life. A smoke detector is a device which senses smoke, act as indicator of fire. It generates fire alarm from the fire alarm system.Smoke alarms that are properly installed & maintained, play a vital role in reducing fire deaths and injuries. Smoke alarms save lives. If there is a fire in your home, smoke spreads fast and you need smoke alarms to give you time to get out. Having a working smoke alarm cuts the chances of dying in a reported fire in half. Almost two-thirds of home fire deaths resulted from fires in homes with no smoke alarms or no working smoke alarms. Features: Photoelectric signal processing technique.Highly stable low component SMT design4 Wire Detector with NONC Relay OutputWide Operating Voltage Range: + 12 VDC+24 VDC+48 VDCCoverage Area: 20 Sq.MWorking Temperature : -1060Working Humidity : % RH