Please always read manual where provided before use to avoid damage to yourself or items.
ABOUT THIS ITEM
Glass tube, PVC bulb and spout (looks like a turkey baster. ISN’T A TURKEY BASTER!)
WHAT IT DOES
A battery hydrometer is used to test the state of charge of a battery cell. This is performed by measuring the density of the electrolyte, which is accomplished by measuring the specific gravity of the electrolyte. The greater the concentration of sulfuric acid, the more dense the electrolyte becomes.