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Teaching materialJeulin specializes in teaching materials for education (Physics, Chemistry, Life and Earth Sciences) and Technology in primary, secondary and higher education.
Laboratory equipment
Teachers, companies or individuals, choosing Le Laborantin is to trust the specialist in laboratory equipment, structured around a team of professionals in the sector.
Measuring equipmentFrench specialist in test and measurement instruments. We select our products from the biggest brands in the sector to offer you and guarantee the best of measurement.
Optical material
Specialized in the design, manufacture and supply of optical teaching materials for Higher Education, Ovio Instruments has been pursuing its primary vocation since 2007.
A hydrometer, is an essential density measurement tool used to determine the specific gravity of liquids. It operates on the buoyancy principle, comparing a liquid’s mass per unit volume to that of distilled water, which has a reference value of 1. Liquids with a lower fluid density than water will have a value below 1, while denser liquids will be above 1.
Hydrometers are widely used in petroleum industry, chemical analysis, pharmaceutical production, and food processing. These instruments ensure precise concentration measurement for quality control and regulatory compliance. Another common use is measuring the alcohol content in a mixture.