Recording barometer - メーカー・企業と製品の一覧 | イプロス

Barometer "OT-211" [Rental]

You can measure changes in atmospheric pressure and record them analogically on paper.

It is an aneroid self-recording barometer that amplifies the deformation of a sealed bellows close to a vacuum due to changes in atmospheric pressure and transmits it to a recording pen, which records it on a strip of recording paper wound around a cylindrical time mechanism.