Zambia Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Saudi Arabia was US$745 during 2016, according to the United Nations COMTRADE database on international trade. Zambia Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Saudi Arabia - data, historical chart and statistics - was last updated on May of 2024.