Vietnam Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Laos was US$34.32 Thousand during 2022, according to the United Nations COMTRADE database on international trade. Vietnam Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Laos - data, historical chart and statistics - was last updated on May of 2024.