Chemical hygrometer

{
  "id": "MLC-T-MET-004268",
  "term": "Chemical hygrometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument that measures atmospheric humidity by observing changes in the physical or electrical properties of a chemical substance as it absorbs or desorbs water vapor. Common types include those that measure the electrical resistance of a hygroscopic salt, such as lithium chloride. These devices provide a direct measurement of moisture content in the air.",
  "see_also": [
    "absorption hygrometer"
  ],
  "url": "https://mlchart.com/terminology/meteorology/chemical-hygrometer/"
}