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BARIGO Barograph Recording Instrument - Brass & Mahogany

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BARIGO Barograph Recording Instrument – Brass & Mahogany

$1,299.00$850.00

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Mechanical barographs have a solid rotating brass drum that is driven by a quartz battery movement to rotate the drum once a week. A felt tip pen at the end of the of the writing arm shows changes in the air pressure on a paper diagram that is wrapped around the drum. A mechanical barometer movement with four round diaphragms measures variation in the air pressure and transfers it very precisely through a system of mechanical levers to the writing arm. All barographs come with a supply of charts and felt tip pens for one year.

Features

  • Solid Rich Mahogany Wood and Polished Brass
  • Precision Quartz driven movement rotates drum automatically
  • Shows changes in air pressure on paper diagram
  • Includes supply of charts and felt tip pens for one year.

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