Philadelphia Instruments Controls Inc. is a company based in Philadelphia, PA that specializes in the manufacturing and distribution of instruments and controls. Their expertise lies in the production of barometers, with a focus on the mercury barometer, which was the earliest form of this device invented.
With a glass tube filled with mercury, the mercury barometer accurately measures atmospheric pressure by comparing the downward pressure of the mercury in the tube to the atmospheric pressure on the surface of the mercury in the dish. Philadelphia Instruments Controls Inc. is dedicated to providing high-quality barometers and other instruments to meet the needs of their customers.
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