Salinity Meter, Waterproof Yes, Automatic Temperature Compensation No, Salinity Range 0 to 80 ppt, Operating Temp. Range (F) 50 Degrees to 104 Degrees, Operating Temp. Range (C) 10 Degrees to 40 Degrees, Display Dual Line LCD, Auto Power Off No, Power Source (4) AG13 Batteries, Manufacturers Warranty Length 1 yr., Number of Tests 0. This item has been restricted from sale in the following state (s): []