A high quality 103mm barometer insert with an elegant design. The dial is made of anodised aluminium and the bezel is made of brass. Requires a hole approx. 55mm diameter and 19mm deep. Made in Germany.
What Barometers Do
A barometer simply measures air pressure – expressed in millibars
or inches. Since changes in air pressure accompany changing
weather, these instruments can be used to help forecast local
weather some 24-48 hours in advance.
Set up for Altitude
In addition to changes associated with weather patterns, barometric
pressure also changes with altitude – decreasing the higher you are.
All our aneroid barometer movements are set at the factory to give
the correct reading at sea level (the standard measurement point).
If the barometer is to be mounted above sea level – i.e for most
domestic use – it is necessary to adjust your barometer accordingly.
An accurate pressure reading should be obtained from the nearest
weather or meteorological station. In the UK this can be obtained by
dialling 0870 900 0100 (local call rate), or +44 1392 885 680 from
overseas. This is the main Met Office Headquarters in Exeter, which
has a very helpful customer care centre who will give you the latest
air pressure reading. Alternatively you can visit their website at
www.metoffice.gov.uk then; using a small screwdriver, the screw
on the back of the movement should be turned until the adjusted
needle indicates correctly.
