PHOTOELECTRIC SMOKE SENSOR TUBE

A smoke detector for an air duct includes a photoelectric detection system and an air flow pathway in fluid communication with the air duct. The air flow pathway includes an inlet, an optic tube, and an outlet. The photoelectric detection system includes a circuit board having at least one light emitter and at least one light receiver mounted thereon. The optic tube passes through the circuit board and between the at least one light emitter and at least one light receiver. 一种用于空气管道的烟雾检测器包括光电检测系统和与空气管道流体地连通的空气流径。空气流径包括入口、光学管和出口。该光电检测系统包括电路板，该电路板具有安装在其上的至少一个光发射器和至少一个光接收器。光学管穿过电路板并且在至少一个光发射器和至少一个光接收器之间穿过。