Description

Make fluid pressure visible and measurable with the Density Manometer, a visually impactful, quantitative demonstration of how pressure increases with depth in a liquid. Students immerse a hollow drum covered with a rubber membrane into water and observe how increasing depth produces a clear, corresponding change in the connected manometer. This direct cause-and-effect setup helps students link physical depth to pressure readings they can see, measure, and analyze—turning abstract fluid concepts into concrete understanding.
Why Teachers Love the Density Manometer

Visual and quantitative: Students see pressure changes directly on the manometer as depth changes.
Clear cause-and-effect: The membrane-and-manometer system makes pressure–depth relationships intuitive.
Multi-concept learning: Supports pressure, buoyancy, and Archimedes’ principle in one setup.
Reliable classroom demo: Produces consistent, repeatable results for demonstrations or guided inquiry.