Product code : 506-203
Category : Meteorology Sub Category : N/A
Product Group : Chart recording instruments
| Type | Product Name | Product Code | Standard Code | |
|---|---|---|---|---|
| NA | ||||
The hygrograph uses hair to detect changes in humidity. The expansion or contraction of the hair 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.
