FOR DEMONSTRATION PURPOSES
Barometer 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 inch of mercury
960 to 1060 millibars