NISupply Salinity Refractometer for Aquarium Sea Water Hydrometer Marine Gem Fluid Refractive index scale (ND): 1

Refractive index scale (ND): 1

54% protein-to-nitrogen ratio

2% Sodium Chloride (10-30 degrees Celsius)

your results could be compromised

This model sells for $180 and up at most retailers

NISupply Salinity Refractometer for Aquarium Sea Water Hydrometer Marine Gem Fluid Refractive index scale (ND): 1Click Here. Double your traffic. Get Vendio Gallery Now FREE! Item Description: RHS 10ATC Portable Salinity Refractometer SOFT CASE! (Long Tube Refractometer) This is the most POPULAR Salinity Refractometer around! We've sold more than 10,000! Product Specs * Ranges: 0 100 ppt of Salinity and 1. 000 to 1. 070 Specific Gravity * Accuracy: + 1 ppt 0. 001 Specific Gravity * Divisions: 1 ppt 0. 001 Specific Gravity * Automatic Temperature Compensation