![](https://coimages.sciencemuseumgroup.org.uk/27/261/large_thumbnail_2000_0273__0002_.jpg)
Ambient Pressure Correction Barometer type UZ0001
- Made:
- 1964-1974
![Ambient Pressure Correction Barometer type UZ0001](https://coimages.sciencemuseumgroup.org.uk/374/733/medium_smg00085713.jpg)
Ambient Pressure Correction Barometer type UZ0001, Made in Denmark by Bruel & Kjaer, Copenhagen, for determining the correction to be applied to a Pistonphone reference sound source for changes in atmospheric pressure caused by weather or height, 1964-1974.