Heavy Duty Salinity Refractometer for Aquarium Ocean Salt Water, Hydrometer, Calibration Knob vee gee refractometer but you can buy as

but you can buy as many as you need

HOW DOES THE AD-2 HELP ME

6858Fax: 310

BRING THIS TO THE SUGAR SHACK

Heavy Duty Salinity Refractometer for Aquarium Ocean Salt Water, Hydrometer, Calibration Knob vee gee refractometer but you can buy asItem Description: RHSN 10ATC Portable Heavy Duty Salinity Refractometer 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 (ATC) * EXTRA Sturdy design made of durable Aluminum, not "carbon" plastic and a CALIBRATION KNOB, 3 Year Warranty IMPORTANT! HIGH QUALITY! EACH UNIT COMES WITH A 3 YEAR