A “Boom hydro meter” (commonly referred to as a Baumé Hydrometer) is a specialized, shot-loaded glass instrument used to measure the specific gravity and density of liquids denser than water.

Key Details & Specs:Scale: Measures in degrees Baumé (°Be) and typically covers a specific gravity range from 1.000 to 2.000.Design: Generally around 11 to 12 inches long, constructed from glass, and weighted at the bottom (shot loaded) to float vertically in the fluid.Common Applications: Used across pharmaceutical processing, industrial chemistry, battery fluid analysis, and ophthalmics.How it works: Floats higher or lower depending on liquid density. You take the reading at the bottom of the meniscus where the instrument aligns with the liquid surface.