Czech Republic Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Seychelles was US$91 during 2018, according to the United Nations COMTRADE database on international trade. Czech Republic Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Seychelles - data, historical chart and statistics - was last updated on June of 2024.