The Micro Dilution System is manufactured by DNS. The newly developed high-precision dosing pump uses a specially constructed dosing pump to obtain high-precision dosing performance, and the integrated design of the reagent pack facilitates replacement of the pump. Sampling device to avoid wasted reagents Minimized tubing connected to the pump and sampling needle can avoid wasted reagents. The reliable microplate conveying system uses a high-precision conveying device and a rubber buffer structure to ensure that the microplate avoids collisions and maintains smooth movement during transportation. Standard bar code reader bar code is pasted on the micro-well plate, which can realize the computer to automatically manage the detection content such as bacteria.