TSD-5135 Conventional Optical Smoke Detector with Relay uses genuine smoke chamber perfected by Teknim engineers through long term fluid mechanics and optic refraction tests. Fire is detected by optical sensing technology. Detector has a series of algorithms developed to minimize erroneous detections and to provide pollution warning. Smoke chamber can be easily removed for cleaning in case of possible pollutions in excessively dusty environments. Detector has 12V – NC contact output in order for theft alarm panels to detect fires. Thus, it can be connected to theft alarm panels.