Singapore Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Turkmenistan was US$403 during 2019, according to the United Nations COMTRADE database on international trade. Singapore Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Turkmenistan - data, historical chart and statistics - was last updated on May of 2024.