Unitec 74274 Battery Hydrometer Hydro Volts sound This bag is made of

This bag is made of weatherproof ballistic nylon with wide pockets that allow for quick mallet changes

change the vibration frequency

Over 4 fun & unique chimes to choose from

Pull on the cursor for easy opening

Every nuance of the sound really stands out

Unitec 74274 Battery Hydrometer Hydro Volts sound This bag is made ofUnitec 74274 Battery Hydrometer Hydro Volts Unitec 74274 battery acid tester Hydrovolt, measuring device for acidity. Checks state of charge and acid density of all lead acid batteries. Large, precisely readable scale, suction ball at all temperatures elastic and functional. Hydrostatic barrier automatically prevents any leakage and trapping of air. The twin measuring device on which the scale is mounted, is 360 rotatable, measuring instrument does