Cameroon Imports of hydrometers, thermometers, pyrometers, barometers, hygrometers from Saudi Arabia was US$523 during 2020, according to the United Nations COMTRADE database on international trade. Cameroon Imports of hydrometers, thermometers, pyrometers, barometers, hygrometers from Saudi Arabia - data, historical chart and statistics - was last updated on May of 2024.