WD-2112B ndi mawonekedwe amtundu wonse (190-850nm) ultra-micro spectrophotometer yomwe sifunikira kompyuta kuti igwire ntchito. Imatha kuzindikira mwachangu komanso molondola ma nucleic acid, mapuloteni, ndi njira zama cell. Kuphatikiza apo, imakhala ndi njira ya cuvette yoyezera kuchuluka kwa mayankho achikhalidwe cha mabakiteriya ndi zitsanzo zofananira. Kukhudzika kwake kumakhala kotere kotero kuti imatha kuzindikira kuchuluka kwa 0.5 ng/μL (dsDNA).