refractometer question

[sansouci01]

I'm getting my shopping list together for my first salt tank. I'm thinking about purchasing a refractometer instead of a hydrometer. Found a RHS-10ATC on amazon for 20 bucks. Most of the ones I see are in the 30 to 50 dollar range. Anyone know if these are any good???

 

[Flaxon-Waxon]

I'm getting my shopping list together for my first salt tank. I'm thinking about purchasing a refractometer instead of a hydrometer. Found a RHS-10ATC on amazon for 20 bucks. Most of the ones I see are in the 30 to 50 dollar range. Anyone know if these are any good???

They are capable of the same thing... Heres a pro tip: make sure you buy one with calibration fluid ?

 

[sansouci01]

Thanks...
Not sure if it does but I will check....
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[edwardclaxton]

I got one off of amazon it was 28 qfter shipping works pretty good

 

[erichm20]

I bought a cheap one off eBay probably the same one as amazon an it said to calibrate it with rodi. Also after u calibrate it bring it into the lfs with a water sample and check the accuracy against theirs.

 

[Trueerfan]

Buy some calibration fluid. I calibrate mine every couple months just to make sure. The one I got off BRS came with it.

 

[bigben2057]

Id check it every few weeks mine went crazy and I had no idea...salinity if .040 were reading .025...I tried to recalibrate it but their was just something wrong so i bought a hydrometer to fix the problem...eventually will get another refractometer...but for now the io hydrometer is pretty reliable,e.

 

[Flaxon-Waxon]

Id check it every few weeks mine went crazy and I had no idea...salinity if .040 were reading .025...I tried to recalibrate it but their was just something wrong so i bought a hydrometer to fix the problem...eventually will get another refractometer...but for now the io hydrometer is pretty reliable,e.

Actually hydrometers are notorious for being off, sometimes as high as 2 to 4 points. Getting a refractometer with calibration fluid, with proper calibration, is by far the best way to go.

 

[Animal-Chin]

Is calibration fluid not just pure water with zero salt?

 

[Flaxon-Waxon]

Is calibration fluid not just pure water with zero salt?

My calibration fluid is 1026.

 

[Flaxon-Waxon]

Great info here:

http://www.reef2reef.com/blog/refractometers-or-hydrometers-why-the-latter-should-contain-a-warning/

 

[Greenstreet.1]

My calibration fluid is 1026.

Mine also atc from brs with fluid I calibrate mine before every use that's just me I'm like that.