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With the Facom 784B battery hydrometer, you quickly gain accurate insight into the charge level and overall health of lead-acid batteries. This diagnostic tool allows you to measure the specific gravity and density of electrolyte fluid precisely, helping you identify weak, undercharged, or failing cells without relying solely on terminal voltage. Thanks to the flexible suction bulb and rubber hose, you draw battery acid smoothly and cleanly. The clear scale inside the transparent tube provides an immediate, reliable readout of every measurement. Weighing only 100 grams with a total length of 480 mm, it makes routine battery maintenance in the workshop fast and efficient.