- A hydrometer is an instrument that measures the specific gravity (relative density) of liquids the ratio of the density of the liquid to the density of water
- Hydrometer for Diesel
- Measurement Range- (800-850)
- Comes with a protector case
- Hydrometers are calibrated for different uses, such as a lactometer for measuring the density (creaminess) of milk, a saccharometer for measuring the density of sugar in a liquid, or an alcohol meter for measuring higher levels of alcohol in spirits