El Salvador Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Belize was US$900 during 2021, according to the United Nations COMTRADE database on international trade. El Salvador Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Belize - data, historical chart and statistics - was last updated on May of 2024.