Record barometric pressure with this mechanical German-made Classic Barograph that measures variation in the air pressure and transfers the data through a system of mechanical levers to the writing arm.
Housed in mahogany case with glass sides and a polished brass handle for easy access. Quartz movement requires no winding and is more accurate than key-wound movements. Barograph readings are marked with a felt tip pen that lasts 6 to 9 months. Furnished with a one-year supply of weekly charts and one felt tip pen. AA battery included.
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