Kerist Car Battery Hydrometer, Rapid Density Meter Tester For Electrolyte Acid, 2V-200V Systems

This is a Kerist brand battery hydrometer, a simple tool to check the health of your battery.

It tests the electrolyte specific gravity to see if your battery is charged, needs a recharge, or is just fair.

The pipe is 13 inches long.

It works for 2V to 200V battery systems, so cars, trucks, boats, motorcycles, you name it.

It's a classic glass and rubber design, with a vertical indicator to make sure you're getting a good reading.

Just remember to hold it vertically!

Comes with a 90-day warranty.

New in package.

Easy way to keep an eye on your battery's acid.