hydrometer vs refractometer?

Discussion in 'General Discussions and Advice' started by sheldar, 25 Oct 2013.

  1. sheldar

    sheldar

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    hydrometer or Refractometer....which is the better or more accurate tester for salinity??
     
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  3. Nemos Janitor

    Nemos Janitor

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    Technically non measure salinity. Hydrometer measures SG and a refractometer measures refractive index which is converted into SG. SG is temperature dependent where as salinity is not.

    You are going to get confused if you do not understand the difference between salinity and Specific gravity.

    So for now forget salinity and let's talk Sg Specific gravity. IMO for a newbie a refractometer will give you the best results. Unless you buy a highly accurate hydrometer and understand that temperature players a part in its accuracy I would strongly recommend an ATC refractometer.
     
  4. HOT SAUCE

    HOT SAUCE

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    also if you are mixing your own water a refractmeter will be much easier to use
     
  5. sheldar

    sheldar Thread Starter

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    thanx a lot guys.I have a silly swing arm hydrometer and i dont trust it. i will definitely invest in a refract.
     
  6. jclaas

    jclaas

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    And displays SG in the eye piece?
     
    Last edited by a moderator: 26 Oct 2013
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