I I-elisa reader iyi-enzyme-linked immunoassay. Kuyithuluzi elikhethekile le-enzyme-linked immunosorbent assay, ebizwa nangokuthi i-microplate detector. Ingamane ihlukaniswe izigaba ezimbili: i-semi-automatic kanye ne-automatic ngokugcwele, kodwa izimiso zabo zokusebenza ziyefana. Umnyombo uyi-colorimeter, ngamanye amazwi, kusetshenziswa ukuhlaziywa kwe-colorimetric. Ukuzimisela ngokuvamile kudinga umthamo wokugcina wesixazululo sokuhlola ukuthi ube ngaphansi kuka-250μL, futhi ukuhlolwa akukwazi ukuqedelwa nge-colorimeter evamile ye-photoelectric, ngakho-ke kunezidingo ezikhethekile ze-colorimeter ye-photoelectric ku- Elisa umfundi.