BS-4020B karu tirotiro ahumahi kua hangaia motuhake mo te tirotiro i nga momo angiangi rahi me te PCB nui.Ka taea e tenei microscope te whakarato i te wheako tirohanga pono, whakamarie me te tika.Na te hanganga tino pai, te punaha whakaata teitei me te punaha whakahaere ergonomical, ka mohio a BS-4020B ki te tātari ngaio me te whakatutuki i nga momo hiahia rangahau me te tirotiro i nga angiangi, FPD, kete taiawhio, PCB, te pūtaiao rauemi, te whakarewanga tika, te whakarewanga whakarewa, te pokepokea tika, semiconductor me te hiko etc.