Aneroid Barometer, 1 Each

The United Scientific® Aneroid Barometer is a 7.5 in diameter dial barometer for teaching how air pressure relates to weather. A flexible metal capsule linked to the pointer through levers and pulleys tracks atmospheric pressure, read on dual hectopascal and mmHg scales. It sits on a plastic base with a ring for hanging and includes an instruction sheet. Earth science teachers use it for weather-station and pressure-logging lessons.