This German made barograph is housed in a mahogany case with glass sides and a polished brass handle for easy access. The single AA battery operated quartz movement requires no winding and is more accurate than key wound movements. The barograph readings are marked with a felt tip pen that lasts 6 to 9 months. It is furnished with a one year supply of weekly charts AA battery and one felt tip pen. Case dims: 7.7 in x 5 in x 5.2 in. Chart size: 2-1/16 in x 9-1/4 in. Chart range: 28.5 to 31 inches. Chart duration: 7 days. Wt. 3 lbs.
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