Check the listing for details. Azzota® Digital Salinity Refractometer, Salinity Range 0-28%. Condition: New. Listed at 379.49 USD. Azzota® Digital Salinity Refractometer, Salinity Range 0-28% Salinity OnlySalinity Range 0-28%Salinity Div. 0.1%Salinity Accur. +/-0.2%Power Supply: 1battery (9v) Temperature Measurement Range: 0°C-40°C (32-104°F)Precision of Measurement temperature: ±1°C (2°F)Measurement temperature Resolution: 0.1°COperation Temperature: 0-35°C (32-90°F)Storage temperature: 0-50°C (32-122°F)Dimension: 185 x 59 x 45mmWeight: 230gPower Supply: 1 battery (9V) includedOperating Time: More than 2000 times per batteryAutomatic Temperature CompensationAutomatic Shut OffConversion between Centigrade and Fahrenheit DegreeAlarm of Low Voltage Sold and Shipped from the US. Other Models available on our store, contact us for more info! Purchase with confidence, unlike our some of our competitors, all our products come with a warranty and complimentary customer service and technical support!