• Professional battery tester (Auto Tester).
• Sturdy design with straight glass cylinder/tube.
• Hand held tester reads specific gravity of battery acid.
• Accurate easy to read battery acid testing.
• Specific gravity of electrolyte can be checked immediately after charging battery.
1.Will test any lead acid battery.
2.Number of floating discs shows the state of charge.
3.Temperature compensating, tests hot or cold.
4.Readings in both specific gravity and percentage charge.
5.Wide range of 1.145 to 1.260 sg.