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HI98319 Salinity & Temperature Tester - Hanna
Hanna Instruments$79.99We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and... -
Seawater Refractometer - Red Sea
Red Sea$74.99Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for... -
ATC Seawater Refractometer - DD Aquarium Solutions
All Misc Brands$54.99Almost all, if not all, of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true ‘seawater’. Although seawater is mostly sodium chloride it also... -
(HI98304) DiST4 Waterproof Electrolytic Conductivity (EC) Tester - Hanna Instruments
Hanna Instruments$68.00The DiST® 4 features a large multi-level LCD which displays both conductivity and temperature readings simultaneously. The EC readings are displayed with a 0.01 mS/cm resolution and with an accuracy of ±2% full scale. The EC range of the... -
FOWLR Beginner Saltwater Test Set (Refractometer, Salifert NO3, PO4)
Salifert$65.99Generic Refractometer - It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and...