$109 FREE S&H Vee Gee Scientific STX-3 Handheld Salinity Refractometer PPT SG

Item Description: VEE Gee Scientific STX-3 Portable Salinity Refractometer, 0-100 Salinity in Parts per Thousand and 1.000-1.070 Salinity Specific Gravity with Automatic Temperature Compensation (ATC) This is a PREMIUM Quality item, please don…