Feature:1. PORTABLE DESIGN: The electronic salinity meter is compact, easy to carry and use, suitable for kitchen food, brine and aquaculture salinity testing.2. EASY TO USE: The salinity meter comes with a digital electronic display, which intuitively shows the salinity data, simple and convenient to use.3. MEASURING RANGE: The average salt concentration of seawater is 3.5%. This salt tester can measure salinity up to 19.90% or 199,000 ppm, allowing you to measure salt in almost any environment. Better than regular refractometers and pool salt test strips!4. WIDE APPLICATIONS: This salinity tester will help you measure salt concentration in any environment, from aquariums, fish tanks and ponds to drinking water and soup.5. WORKING TEMPERATURE: The salinity tester has automatic temperature compensation and a wide working range, it can work stably in the environment from 0C to 50C.Specification:Item Type: Salinity TesterMeasurement Range: 0-19.9Resolution: 0.1Accuracy: 2% Full ScaleOperating Temperature: 0C-50CBattery: 4 x AG13 Cell Batteries (Batteries not included)Weight: Approx. 128.00g / 4.52oz.Package List:1 x Salinity Tester1 x Accessories1 x User Manual1 x Storage Box