About This

• Safe Material:Made of plastic,aquarium clear Automatic Accurate Readable SaltWater Hydrometer.
• Durable Clear Acrylic:Accurate, durable, and easy to read your marine aquarium's salt level and specific gravity,Small and waterproof.if the specific gravity between 1.000 - 1.019,show that the specific gravity is small;if the specific gravity between 1.020 - 1.023,show that the specific gravity is nomal;if the specific gravity between 1.024 - 1.030,show that the specific gravity is big;
• Clearly Safe Zone Indicated:Includes solinity and specific grovity scales.The outside rang of scale indicates salinity(PPT).The inside range of scale indicates gravity.And with safe zone clearly indicated.Range of use: 0-40 degrees (1.000-1.030).If the salinity ppt between 32 - 40，show that the salinity hydrometer is high;If the salinity ppt between 27 - 31，show that the salinity hydrometer is normal; If the salinity ppt between 0 - 26，show that the salinity hydrometer is light.
• Wide Usage:Fit for brackish and marine aquariums.Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes solinity and specific grovity scales.Suitable for fresh water and sea water.
• Easy to Read and Use:The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.