The Hydrometer Is Made From High-quality Glass Or Transparent Plastic, Ensuring Durability And Visibility Of The Electrolyte Level During Testing.
Contains A Floating Device Inside The Tube, Which Rises To Different Levels Depending On The Electrolyte’s Specific Gravity, Providing An Accurate Reading.
Typically Features A Color-coded Or Numerical Scale, Making It Easy To Interpret The Condition Of The Battery, Such As "Charged", "Needs Charging", Or "Needs Replacement".