WD-9402M Gradient PCR Instrument shine na'urar kara girman kwayoyin halitta da aka samo daga kayan aikin PCR na yau da kullun tare da ƙarin aikin gradient. Ana amfani da shi sosai a cikin ilmin kwayoyin halitta, magani, masana'antar abinci, gwajin kwayoyin halitta, da sauran fannoni.