$44.99 Ocean Salinity Refractometer for Aquarium Sea Reef Water Heavy Duty, Dual Scale VST Refractometer High Quality

High Quality

These regulations will affect excavators

Accuracy and ATC: Designed for high precision

Use interchangeable

Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain

$44.99 Ocean Salinity Refractometer for Aquarium Sea Reef Water Heavy Duty, Dual Scale VST Refractometer High QualityItem Description: RHS 10ATCd Portable Salinity Refractometer This is the most POPULAR Salinity Refractometer around! We've sold more than 10,000! Perfect for Reef Aquariums! Made of beefy ALUMINUM unlike the cheap units! A better warranty that the rest too! 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