QWORK® Salinity Refractometer, Dual Scale Saltwater Tester Hydrometer with ATC, for Fish Farming, Seawater Analysis, 0 100 ppt & 1.000 1.070 Specific Gravity

Dual Scale Readings: Measures salt percent (0-100 ppt) with 1 ppt resolution and specific gravity (1.000-1.070 g/cm³) with 0.001 g/cm³ resolution, ideal for precise saltwater testing. Durable and Reliable: Made of copper alloy, durable; anti-scratch and lightweight, easy to use and long service life. Automatic Temperature Compensation (ATC): Ensures accurate measurements across various temperatures, making it perfect for aquariums, marine aquaria, and other applications. Versatile Application: Suitable for a range of environments including saltwater pools, seawater analysis, agriculture, industry, research, water quality monitoring, and more. Easy to Use: Requires only 2-3 drops for testing,making it a user-friendly tool for professionals and hobbyists in fish culture, marine survey, and food processing.