Seychelles Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to France was US$674 during 2019, according to the United Nations COMTRADE database on international trade. Seychelles Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to France - data, historical chart and statistics - was last updated on May of 2024.