How to Use:
Take off the liquid hole cover on the battery, and then put the lower end of the densitometer into the battery, pinch the rubber ball on the upper part of the densitometer, slowly relax the rubber ball, and inhale the electric liquid into the glass tube, so that the internal color disc floats, and the reading can be read through the floating position.

Specification:

Item Type: Anti Freeze Coolant Tester
Material: Rubber+ABS
Fitment: Fit for 6V and 12V batteries

Package List:
1 x Anti Freeze Coolant Tester1 x User Manual

Note:
1.Manual measurement allows for tiny tolerances.2.When reading, the line of sight should be in line with the liquid level.