How to calibrate temp?

[Munch]

Ok, dumb q, is there an easy way to calibrate my control unit temp probes? Without buying another temp device?

I had an issue with my APEX, one probe started reading off the charts. So I reset, and I had two probes in the tank each reading different, within 1 degree of one another.

Trying to calibrate and set them both.

I basically need a control/known temp, any way to generate one? Ice water, etc....

 

[Munch]

Just read the Apex won't read at freezing or boiling. So that's out...

 

[that0neguy1126]

There is a calibrate temp probe built into the apex. I have an old floating mercury thermometer that i use as the base temp and then use that to calibrate the apex probes.

 

[Munch]

Yea, funny, they don't sell the old style thermometers, all digital

Atleast the stores I hit tonight...

 

[Off The Deep End]

Walmart has them or I have a few of them laying around, little bit of a drive though.

 

[ReefCheif]

Yea, funny, they don't sell the old style thermometers, all digital

Atleast the stores I hit tonight...

Petco and Petsmart should both have them, I just bought 4 of them from Petco

 

[Mccoc033]

I have a mercury tank thermometer I can run over to you tomorrow


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[Munch]

I think I'm ok. I just got in two new Jagers, so I'll set off them for now. I have a new digital sensor on order, to triple check.