Neilsen CT3066 Battery Hydrometer

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The Neilsen CT3066 is a straightforward float-type hydrometer designed to test the specific gravity of electrolyte fluid in lead-acid batteries, giving users a reliable indication of charge level and overall battery health. It measures across a range of SG 1100 to 1300, covering the typical readings found in both charged and discharged lead-acid cells. It is a simple, no-frills tool that offers good value for home garage use and occasional battery maintenance checks.
Key Features & Specs
| Measurement Range | Specific gravity 1100 to 1300, suitable for standard lead-acid battery electrolyte testing |
|---|---|
| Compatibility | Designed for use with flooded lead-acid batteries including car, van, motorcycle, and leisure batteries |
| Design | Squeeze-bulb float hydrometer with transparent barrel for direct reading of the graduated float scale |
| Material | Plastic construction with acid-resistant components suitable for handling battery electrolyte |
| Ease of Use | Simple squeeze-and-draw operation with no calibration required before use |
| Portability | Compact and lightweight, easy to store in a toolbox or workshop drawer |
| Warranty | Standard Neilsen manufacturer warranty; check retailer listing for specific terms |
Best for: DIY mechanics, classic car enthusiasts, and home garage users who maintain flooded lead-acid batteries and want a quick, affordable way to check battery charge and condition without specialist equipment.