Portable dissolved oxygen detector

The invention relates to a portable dissolved oxygen detector. The dissolved oxygen detector comprises a detecting device and a detection probe device, the detection probe device comprises a samplingcase, the sampling case is divided into two sampling tubes, a dissolved oxygen electrode and a pH electrode are respectively arranged in the sampling tubes, the dissolved oxygen electrode and the pH electrode respectively use an independent signal line to connect with the detecting device, a turtle pump used for drawing water in the sampling tube is arranged in the sampling case, and a temperaturesensor is arranged outside the sampling case. The portable dissolved oxygen detector is capable of simultaneously detecting three parameters related with the dissolved oxygen detection, which are a pH value, dissolved oxygen content and water temperature, and the detection cannot be interfered. 种便携溶解氧检测器，包括检测仪以及检测探头器，所述的检测探头器包括采样箱，所述的采样箱内分隔成两个采样管，所述的采样管内分别设置有溶解氧电极以及PH电极，所述的溶解氧电极与所述PH电极分别使用独立的信号线与所述检测仪连接，所述的采样箱内置用于向所述采样管内抽