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reproducibility and speed significantly better than those obtained with urinometers or with non-temperature compensated instruments
pH electrodes
Misco BKPR-1 Digital Honey Refractometer (MADE IN THE USA
One BRAND NEW Fast
total dissolved solid (TDS)
Sea Side Aquatics Refractometer Measures Salinity Saltwater Aquarium Natural Gas reproducibility and speed significantly betterItem Description: Sea Side Aquatics Refractometer Salinity Measure, monitor and control the concentration of salt water. Vital if you need to check salt levels for your aquarium. Healthy fish are happy fish! Ensure the percentage of salinity in your aquarium or pond is just how your fish like it. Essential piece of equipment used in research and clinical laboratories for checking and maintaining stock solutions and dilutions Vital for marine industry
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