Need help finding a refractometer or hydrometer.

  • Thread starter Thread starter Exotrezy
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The Hanna one is a ec salinitymeter too. Like a high range tds pen and the converts that to salinity. I don't like that one.
Regardless of what tool you use it should give a consistent reading no matter what. For this reading I have to give the Hanna Pen a huge fail. I have not tried the TDS pen but if it can be skewed by the electronics in our tanks I would be hesitant to use that one too.

The TM and NISupply tools have both given me consistent and repeatable reading's that can be cross checked by one another. This makes me more confident that the 2 tools are giving very consistent and accurate readings. They always agree, regardless of the fact that they are 2 different types of test.
 
Regardless of what tool you use it should give a consistent reading no matter what. For this reading I have to give the Hanna Pen a huge fail. I have not tried the TDS pen but if it can be skewed by the electronics in our tanks I would be hesitant to use that one too.

The TM and NISupply tools have both given me consistent and repeatable reading's that can be cross checked by one another. This makes me more confident that the 2 tools are giving very consistent and accurate readings. They always agree, regardless of the fact that they are 2 different types of test.
No I mean the Hanna one in your Pic s the tds one it. It's a ec salinity meter it uses high range and converts it to Sal. But I agree about the consistency. It's just hard to compare readings from 2 differennt testing methods usually a small discrepancy. From a hydrodrometer. If this is what u have then yes it is the tds kinda one

https://a.co/d/djORZTv
 
No I mean the Hanna one in your Pic s the tds one it. It's a ec salinity meter it uses high range and converts it to Sal. But I agree about the consistency. It's just hard to compare readings from 2 differennt testing methods usually a small discrepancy. From a hydrodrometer. If this is what u have then yes it is the tds kinda one. But yes I agree that those two are better than the Hanna.

https://a.co/d/djORZTv
 
It is about 10 inches to the 1.028 mark but not sure why you would not want to measure under 1.028 SG. I would want a least 12" to be able to get down to 1.023 or so.
Doh! I was thinking backwards about the scale, but it doesn't sound like it would work for what I would want. My two nanos are only 12" deep to the edges of the glass, probably only ~10" of actual water.
 
Hey all, what do you guys think of this one? I am in need of a hanna alkalinity checker and the person selling one also has a refractometer. He said he has had it for 2 years and he never recalibrated it and it works perfectly. He has anemones and stuff and tbh they look amazing based on his pictures. He is selling because he bought a hanna one and doesn't need it anymore. Pictures of it are attached.
1758849554992.png

1758849542626.png
 
I attached a couple pic of his anemones & coral here aswell:
1758849626792.png

1758849611087.png

1758849603766.png
 
Hey all, what do you guys think of this one? I am in need of a hanna alkalinity checker and the person selling one also has a refractometer. He said he has had it for 2 years and he never recalibrated it and it works perfectly. He has anemones and stuff and tbh they look amazing based on his pictures. He is selling because he bought a hanna one and doesn't need it anymore. Pictures of it are attached.
1758849554992.png

1758849542626.png
Typical run of the mill refractometer. Just make sure you calibrate it and you're good to go.
 
Typical run of the mill refractometer. Just make sure you calibrate it and you're good to go.
What should I calibrate it with? He said he’s never calibrated and for the 2 years he’s had it it’s worked perfect
 
What should I calibrate it with? He said he’s never calibrated and for the 2 years he’s had it it’s worked perfect

Make your own calibration fluid from Randy's article

"For a refractometer:

Use 3.65 weight percent sodium chloride solution to match 35 ppt (sg = 1.0264). It can be made by dissolving 3.65 grams of sodium chloride in 96.35 grams (mL) of purified freshwater."
 

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