ʻO ka DOS-1703 portable dissolved oxygen mika he mea kupaianaha no ke ana a me ka mana microcontroller ultra-low, ka hoʻohana haʻahaʻa haʻahaʻa, hilinaʻi kiʻekiʻe, ana akamai, me ka hoʻohana ʻana i nā ana polarographic, me ka hoʻololi ʻole i ka membrane oxygen.Loaʻa ka hana hilinaʻi, maʻalahi (hoʻokahi lima lima), etc.