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This demonstration barometer is used for measuring air pressure and demonstrating how an aneroid barometer operates.
Encased in a transparent acrylic case which allows full view of the movement. The barometer responds to changes in the air pressure. The action can be demonstrated with the help of a rubber bellow which increases the pressure when squeezed. Supplied complete with rubber bellow.
Size: 100mm dial
Graduated: 28 to 31 inches of mercury
960 to 1060 millibars
