How do you know temp probe is accurate?

[budsreef]

I just hooked up an RKII on the 120G and was wondering whether to trust the temp probe right out of the box. It reads differently than the digital ones I have which I have never trusted since they all read something different in the same water. Is there an easy way to actually test this?

 

[flyingarmy]

You should be able to calibrate it like you do a PH probe. You can use a mercury thermo or several digital thermos for calibration.

 

[budsreef]

flyingarmy;158569 wrote: You should be able to calibrate it like you do a PH probe. You can use a mercury thermo or several digital thermos for calibration.

Yea, it looks like the calibration itself is easy, but having something I trust as a standard to check it against is the problem.

 

[flyingarmy]

Use a normal thermometer, just don't let the wife know you used it!

 

[glxtrix]

Ha!

 

[reefknight]

I typically use a glass thermometer when calibrating the Neptune temp probes. (As Mark suggested)

I have three of the Coralife digitals and none of them read the same temp, so I place little labels on them with +/- degrees of accuracy. It works, but can be a PITA.

 

[budsreef]

reefknight;158606 wrote: I typically use a glass thermometer when calibrating the Neptune temp probes. (As Mark suggested)

I have three of the Coralife digitals and none of them read the same temp, so I place little labels on them with +/- degrees of accuracy. It works, but can be a PITA.

Good idea on the digitals. I'll have to buy a glass thermometer next time I'm out.

 

[bobz]

Bud,
I have a stainless steel thermometer which is used for accurate measurements for photo developing (remember film developing???). I can bring it over this weekend if you want.
Bob

 

[budsreef]

bobz;158747 wrote: Bud,
I have a stainless steel thermometer which is used for accurate measurements for photo developing (remember film developing???). I can bring it over this weekend if you want.
Bob

That would be great, thanks!