Professional Salinity Refractometer,Salinity Tester, Salt Tester for Saltwater Pool, for Saltwater Aquarium, Pools, and Tanks,Dual Scale 0-100 PPT & Specific Gravity 1.000-1.070 with ATC Function

Features

• Salinity Refractometer：This refractometer measure salt water or salinity of water, ideal for aquariums and marine monitoring.
• Dual Scale: Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand. Density of 1.0-1.070 with min scale of 0.001.Concentration of 0-100‰, with min scale of 1‰
• With ATC Function：Features automatic temperature compensation.ATC：50℉-86℉ (10℃~ 30℃),No Batteries.
• Durable and Portable:The refractometer is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion.
• Includes：Salinity refractometer comes with a hard case, dropper, screwdriver, user manual,cleaning cloth and Portable USB LED Light easy to calibration and reading