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: 7.75" x 5" x 5.2". Chart size: 2-1/16" x 9-1/4". Chart range: 28.5 to 31 inches. Chart duration: 7 days. Wt. 3 lbs.