Hydrometers have different ranges of specific gravity dependent on what they are designed to test.
A few rough examples ....
Battery acid 1.2 - 1.3
Wine 0.9 - 1.1
Car coolant 1 - 1.2
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell
When the debate is lost, slander becomes the tool of the loser. Socrates