Shipping & Delivery Standard/Economy: $12.99; free standard shipping on eligible qualifying orders of $100 or more. Most in-stock orders process in 1–3 business days. Estimated standard transit is 5–12 business days after dispatch. Backorders, preorders, and special orders follow their stated lead times. Dates are estimates, and separate shipments may have separate charges. Review the Shipping & Live Arrival Policy and final charges at checkout. International rates and specialty charges are separate from domestic standard offers. A reliable, manual alternative to digital salinity testers trusted by reef hobbyists for consistent accuracy. Easy to Read Dymax RF-20 Sea Water Refractometer Salinity refers to the amount of salt concentration in water. Different salt content in the solution results in different refractive indexes, which are also known as salinity readings. The Dymax RF-20 Refractometer is a device that measures the salinity of salt content in water by using a mathematical algorithm to calculate the measured refraction against its concentration for a specific liquid. This device is made of high-quality anti-corrosion material, providing reliability and instant, accurate salinity readings due to its high-resolution display, designed for the relevant range of reef aquariums. Features: Instant Salinity Reading Quality Corrosive Resistant Materials Maximum Accuracy High-Resolution Display Includes: Refractometer Calibration Screwdriver Pippet Calibration Solution Cleaning Cloth Add Calibration Solution for Accurate Readings (+$22.99) WARRANTY CoralVue, Inc. and Dymax hereby guarantee this product to be free from defects in material and workmanship for a period of: 1 Year Warranty is activated on the date of purchase.
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