High-quality round barometer 1436R. Brand: Fischer, Germany.
Classic barometer with visible mechanism. The device is set in a brass frame. Wooden base. Names in English.
Diameter: 17cm
Instrument dial diameter: 13.5cm
Material: brass, stainless steel, wood
Barometer measurement accuracy: ± 2 hPa

It is widely known that the higher above sea level, the lower the pressure. The higher the pressure, the less changeable the weather. At pressure higher than 1020 mbar, we can expect a dry, clear day. In summer, this will simply be fine weather; in winter, the day will probably be frosty (though with the possibility of fog). Pressure in the range of 1005–1020 mbar means changeable weather. Periods of clearing may alternate with passing rain. At pressure below 1000 mbar, the sky will be covered with clouds and we can expect rain. A rise in pressure means improvement, and conversely, a drop means worsening weather. Sudden, significant pressure jumps in summer may indicate strong thunderstorms.

A barometer is a very precise device for measuring air pressure. For this purpose, it uses a so-called vacuum capsule, whose walls expand or contract by hundredths of a millimeter depending on changing air pressure.

The barometer was calibrated at the factory. However, as a result of, for example, strong shocks, a new adjustment may prove necessary. To carry it out, use a screwdriver and adjust the screw on the rear wall of the device in accordance with the recommendations in the enclosed instructions.