The Hanna Marine Alkalinity Checker® measures alkalinity in dKH units, using a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the read more ››
Replacement reagents for the Hanna Marine Alkalinity (dKH) Checker® HC – HI772. These high-quality reagents are manufactured in Hanna's state-of-the-art facility and are clearly marked with the read more ››
What is so special about this calibration solution? There really isn't anything special about the calibration solution itself. It is just your standard 7.01 pH calibration fluid. What makes it read more ››
Product Description pH Alert™ is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH read more ››
Measures pH and temperature with simultaneous temperature and pH display. Auto-ranging three point calibration with digital fine tuning. Includes 4 pH buffer solution in a sponge embedded in a clear read more ››
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