Weems & Plath Classic Barograph

Record barometric pressure with this mechanical German-made Classic Barograph that measures variation in air pressure and transfers the data through a system of mechanical levers to the writing arm. Housed in a rich mahogany case with glass sides and a polished brass handle, this barograph is equipped with a battery operated quartz movement with 4 diaphragms that rotates the solid brass drum once a week, requires no winding, and is more accurate than key wound movements. The barograph readings are marked on paper charts with a felt tip pen.

• Both inch and millibar charts are available
• Mahogany case with glass sides and polished brass handle
• Quartz movement with 4 diaphragms
• Requires no winding
• Chart duration: 7 days
• Included are: One-year supply of weekly inch charts (121), AA battery, one black felt tip pen (451) (lasts 6-9 months)
• Millibar charts (120CH) available separately

• Length: 7.9 in (20.07 cm)
• Width: 5 in (12.7 cm)
• Height: 5 in (12.7 cm)
• Dimensions: Case dims: 7 3/4' x 5' x 5 1/4' (197 x 127 x 133 mm)Chart size: 2 1/4' (57 mm)Chart range: 28.5 to 31'
• Weight: 3.4 lb (12.7 cm)
• UPC Code: 721002002358
• HTS Code: 9025.80.4000