ʻO ka WD-2112B kahi ʻano spectrophotometer ultra-micro lōʻihi piha (190-850nm) ʻaʻole pono ke kamepiula no ka hana. Hiki iā ia ke ʻike wikiwiki a pololei i nā waikawa nucleic, nā protein, a me nā hoʻonā cell. Hoʻohui ʻia, hōʻike ia i ke ʻano cuvette no ke ana ʻana i ka neʻe ʻana o nā hopena moʻomeheu bacteria a me nā laʻana like. ʻO kona sensitivity ka mea hiki ke ʻike i ka haʻahaʻa e like me ka 0.5 ng/µL (dsDNA).