Botswana Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Congo was US$422 during 2020, according to the United Nations COMTRADE database on international trade. Botswana Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Congo - data, historical chart and statistics - was last updated on May of 2024.