4 x E-Line Aquatic optical refractometer for Seawater/saltwater
Scale A: 1.000 – 1.070 SG
Scale B: 0 – 100 ppt
This model can be used for seawater desalination operations possibly on ships, and again in the oil industry where seawater is used to prepare drilling fluids. It is also ideal for amateur aquatic aquariums. It also incorporates a SG scale specifically designed for seawater.