Battery Hydrometer
Product Details:
The state of charge of a lead-acid battery can be estimated from the density of the sulfuric acid solution used as electrolyte. A hydrometer calibrated to read specific gravity relative to water at 60 degrees Fahrenheit is a standard tool for servicing automobile batteries. Tables are used to correct the reading to the standard temperature
Specification
Brands: SkillStar, SLS
Color: Blue, Brown
Size: Large, Medium, Small