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  4. Furnishings and Equipment (hierarchy name)
  5. Measuring Devices (hierarchy name)
  6. measuring devices (instruments)
  7. [measuring devices for phenomena]
  8. meteorological measuring devices
  9. radiosondes
Scope note
Instruments carried aloft by free, unmanned balloons and equipped with devices for measuring temperature, pressure, and relative humidity and automatically able to transmit the data by radio.
Accepted term: 13-May-2024