506-204
Category:
Meteorology
Sub Category:
N/A
Product Group:
Chart recording instruments
The barograph uses a vacuum capsule to detect changes in atmospheric pressure. The expansion or contraction of the capsule is transferred into a vertical movement which is recorded on the revolving drum.
Mechanical movement, supplied with 52 weekly charts and a bottle of ink.
| Description | Barograph, 955-1055 mb |