Hydrometers & Accessories

Laboratory hydrometers for fast, accurate density and specific gravity measurement across analytical, industrial, petroleum, food, and beverage applications. This collection brings together Heathrow Scientific's full hydrometer range — specific gravity, Baumé, alcohol proof, API, and ASTM soil hydrometers — plus the jars, storage cases, and racks that keep them protected and organized.

Each hydrometer is blown from borosilicate glass with a clearly printed, permanently bonded scale for repeatable readings. Choose a single-scale instrument for a fixed range, a dual-scale model to read specific gravity and Baumé together, or a built-in-thermometer version to correct readings to reference temperature in one step.

  • Specific Gravity Hydrometers — precision 305 mm and 330 mm ranges, short 165 mm formats, and wide-range sets
  • ASTM Hydrometers — 151H/152H soil hydrometers and the 6700 Series ASTM specific-gravity range
  • Baumé & Specialty — heavy Baumé, alcohol proof, LPG, and calcium chloride scales
  • Accessories — borosilicate hydrometer jars, 10-place hydrometer racks, and PVC storage cases

Not sure which range you need? Match the hydrometer's scale to the density of the liquid you are testing, and pair it with a matching hydrometer jar tall enough to let the instrument float freely. Every item ships from Heathrow Scientific with the model/series number listed for quick reordering.