Handheld Salinity Refractometer for Aquarium 0 to Salinometer Portable SeaWater Concentration Tester Meter ATC Handheld salinity refractometerFeatures:Measure salinity quickly and accurately with our handheld refractometer perfect for marine survey, water quality and fish culture.Made with glassprism for precise measurements and adjustable eyepiece for clear readings ensuring results every time.Designed for professionals in agriculture, industry, and research for mariculture, aquarium enthusiasts, and processing applications.Take our portable salinometer you need to measure concentration from the ocean to your own backyard.Experience the convenience of automatic temperature compensation and easy making salinity measurement a breezefor anyone.Specifications:Metal, RubberSize: Approx. 17x195x17mm/0.67x7.68x0.67inPackage Includes:1x Salinity RefractometerNote:Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.