Ensure your vehicle's battery is in peak condition with the Draper Battery Hydrometer—a precision tool designed to test the electrolyte density in each cell of a lead-acid battery. Ideal for automotive maintenance, this hydrometer provides a quick and accurate reading of battery charge levels. Whether you're a professional mechanic or a DIY enthusiast, the Draper Battery Hydrometer is a must-have for maintaining battery health and performance.

• Accurate Electrolyte Testing: Measures specific gravity from 1.100 to 1.300 g/ml with clear color-coded zones: Red (1.100–1.205): Battery discharged White (1.205–1.260): Battery requires attention Green (1.260–1.300): Battery fully charged
• Made with a glass tube, PVC bulb, and spout for reliable use and easy handling.
• Easy Calibration, designed for use at 20°C for optimal accuracy.
• Always exercise caution when removing battery cell caps and during testing.