Sulfuric acid, the vitriol oil of alchemists, H2SO4 formula is the strongest of simple acids.

the uses of sulfuric acid are: the manufacture of fertilizers (superphosphates), consuming 50% of the production; the artificial textile industry; ore processing; oil refining; storage of electricity ("lead-acid batteries"); stripping of metals in the iron and steel industry; the synthesis of many compounds (dyes, explosives, detergents, salts, other acids ...).

Thanks to its PTFE cable and its PVDF casing, the TUBA 125C can be used to regulate / detect a level in sulfuric acid.