Rwanda Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Burundi was US$1.86 Thousand during 2015, according to the United Nations COMTRADE database on international trade. Rwanda Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Burundi - data, historical chart and statistics - was last updated on May of 2024.