The plate washer is a medical device specially used for cleaning the microplate, and is generally used in conjunction with the microplate reader. It is mainly used to clean some residues after the detection of the ELISA plate, thereby reducing the error caused by residues in the subsequent detection process. It has been widely used in the cleaning of enzyme-labeled plates in hospitals, blood stations, sanitation and epidemic prevention stations, reagent factories, and research laboratories.

The automatic plate washer is mainly composed of a cabinet, a cleaning head lifting unit, a microdrop plate drive unit, a pressure and vacuum unit, an on/off power supply, a microprocessor, and peripherals.