Features: 1. Widely used to test antifreeze, bath of glass, battery liquid and etc. 2. Large LCD screen, cool and modernized design, simple to operate and easy to read even in the dark. 3. It will automatic shutdown without any operation, enter power saving mode to ensure the long service life. 4. Featuring a protective shell to prevent accidental damage and collision. 5. The sample tank is not easy to leakage, can be operated by one hand and with IP65 protection, can directly wash the induction tank with water. Specification: Item Type: Hydrometer Material: Plastic Battery: 1 x AAA Battery (Not Included) Cleaner SO1: Range: (0)-(-40), Resolution: 0.1, Accuracy: 0.5 Ethylene Glycol S02: Range: (0)-(-50), Resolution: 0.1, Accuracy: 0.5 Propylene Glycol S03: Range: (0)-(-50), Resolution: 0.1, Accuracy: 0.5 Battery S04: Range: 1.000-1.500sg, Resolution: 0.001, Accuracy: 0.005sg Package List: 1 x Hydrometer 1 x Plastic Dropper