Hygrometer Thermograph Thies

Hygro Thermograph Thies

This instrument is used to measure and record the atmospheric air pressure. The recording is carried out by means of a hand wound clock work drum mechanism acc. to DIN 8300 and DIN 58658 (3.0800…; 3.0804…) or with a Quartz clock work (3.0804…).
The on-site-elevation can be set by means of an adjusting screw.
Delivery includes a set of recording charts (100 sheets)