12 Volt Inverter Battery Hydrometer Specific Gravity Tester (AXB-Medium Size, Black)

The Battery Hydrometer professionally gives accurate indications on battery charge status and battery condition. The Global Battery tester is designed to test the concentration of the battery acid in non-sealed batteries. Global Hydrometer Tester Features – Professional quality for highest accuracy – Precision graduated specific gravity float – Perform Tests of the battery in seconds – Easy to read, color coded hydrometer – Precise readings for status of battery cells – Accurately Tests battery fluid condition ! NOTE ! Do not perform a hydrometer test on a battery that has just been watered. The battery must go through at least one charge and discharge cycle in order to permit the water to adequately mix with the electrolyte.