nit Dimensions: Size :20cm x 4cm x 3.8cm
Measuring Range:0-100‰ Salinity
Measuring Range:1.000-1.070 sg
(Water Gravity) Min.div/Accuracy:0.001 sg
The Reef Casa salinity refractometer is a professional grade optical instrument made to the highest standards for obtaining extremely accurate measurement of salinity. Its precisely engineered and heavy duty, out performing any other refractometer on the market. Once you have held one and tried you will understand why so many hobbyists trust this device to the well being of their salt water aquariums.