WD-9402M Gradient PCR Instrument ndi chipangizo chokulitsa jini chochokera ku chida chokhazikika cha PCR chokhala ndi magwiridwe antchito owonjezera a gradient. Amagwiritsidwa ntchito kwambiri mu biology ya mamolekyulu, zamankhwala, makampani azakudya, kuyesa majini, ndi zina.