Widely used: Battery Hydrometer works on all 6-12-24 volt systems.
High quality: Deep Cycle Battery Tester is made of good quality plastic, resists breakage, and long service time. Clear scale dial, easy to read the values.
Useful: Hydrometer immediately and accurately tests battery life whether the battery is hot or cold, which help extend battery life and detects overcharge.
Stable and reliable performance: Our product is tested several times by senior experts to select the optimal production plan, which is produced by a very tight machine.
Stable performance: Produced by professional factories with fine workmanship and after strict quality inspection, it has stable performance and high reliability.