ʻO ZM-900 ka hopena maikaʻi loa e pale aku ai i ka nānā ʻana i ka QR-code hoʻopunipuni, ua hōʻike ʻia i kahi pale haʻahaʻa haʻahaʻa e hōʻoluʻolu mau i ka QRcode.Me ka algorithm a ZOOY, ʻaʻole e hana hou ka QR-code i hoʻopili ʻia, ʻaʻole hiki ke hoʻokaʻawale a kope.ʻOiai ke nānā ʻana i ka QR-code hoʻopunipuni, ʻaʻole e mālama ka app ma ke ʻano he mau lāʻau patrol.Hoʻolālā ʻia ia no ka ʻenehana ʻenehana me ka helu IP65, ka wai a me ka shockproof.ʻOiai ma lalo o ka ikaika o ka lā, ke kūlana backlight, hāʻawi mau ʻo ZM-900 i kahi ʻike nānā pono.