Water quality detector

The utility model relates to the technical field of water quality detection equipment, in particular to a water quality detector. Comprising a detection assembly and a detection assembly, the detection assembly comprises a detector and a base, one end of the detector is connected with a positioning sleeve, the detection assembly comprises a connecting line, one end of the connecting line is connected with a connector, and the end, away from the connector, of the connecting line is connected with a sensor. The end, away from the connecting line, of the sensor is connected with a protective cushion layer, the end, away from the sensor, of the protective cushion layer is connected with a probe sleeve, a probe is arranged on the inner side of the probe sleeve, and the end, away from the protective cushion layer, of the probe sleeve is connected with an anti-collision cover. When the probe sleeve is inserted into the positioning sleeve, the protective cushion layer is used for limiting the insertion depth, and mea