Umm.... ***. Which is the correct one? [emoji3]

[fu_iceman]

4 thermometers. All different. What would you go with as the correct temperature of my tank?

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[Gladmaker]

I would guess that a mercury thermometer would be more accurate. You might try comparing to one of those. I have 2 like the top ones in your picture. Haven't thought to check for accuracy.

 

[Valentini89]

I would guess that a mercury thermometer would be more accurate. You might try comparing to one of those. I have 2 like the top ones in your picture. Haven't thought to check for accuracy.

I would go with the Inkbird.

 

[SALTYwaterDOG]

That's pretty close I wouldn't worry about that little bit of difference, run it

 

[Sk8r]

if it were salinity, it would be a concern: but it could even be due to whether a powerhead is blowing on it.

 

[nereefpat]

Average = 77.3
Standard deviation = 0.4
So 77.3 +/- 0.4......It doesn't matter.

 

[fu_iceman]

Ha.

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[fu_iceman]

Average = 77.3
Standard deviation = 0.4
So 77.3 +/- 0.4......It doesn't matter.

I went with the average and adjusted the ink bird. Thanks


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[JVan82]

Take an average of the 4

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[ca1ore]

There's a total spread of 1.3 degrees ..... immaterial.

 

[sde1500]

yea I wouldn't be too concerned. Interesting to see the variance though. Doubt those probes could take it but one way to confirm would be to find your elevation above sea level, then boil a pot of water. It boils at 212 F, reduce by 1 degree for each 500 ft above sea level. Would probably melt those probes though.

 

[ca1ore]

I think precision (consistency) is more important that absolute accuracy - as long as it's not off by a major amount. Remember that most of the equipment we use is hobby grade not industrial grade (like a Ranco, for example).

 

[PatW]

The fish and corals won't care. Any of them are close enough.


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[Drblakjak55]

That's funny. Found same thing. Two of those alcohol types disagreed by 0.8 while the cheap digital sat in the middle. Consistency. Being constantly wrong in this hobby makes it thought provoking.


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