tropic marin high precision hydrometer

  1. Muffin87

    Doublechecking Digital Refractometer

    I already own a delicate, glass hydrometer from Dupla. Plan on buying a digital refractometer, the Hanna one specifically. Should I own a handheld refractometer to double check the digital refractometer? The Vee Gee STX-3 is a bit of an investment, but I can't doublecheck with the hydrometer...
  2. Muffin87

    good salinity checking routine? suggestions?

    I want to get into the habit of checking my salinity more often. The issue is using a salinity measuring tool that I can trust, and rely on without having to tinker with it every time. An analog refractometer requires quite a bit of tinkering and cleaning for one measurement. The Hanna Salinity...
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