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NIST Traceable Thermometer

revnull

revnull

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Does anyone (or the club) have a NIST traceable thermometer I can borrow? It's been almost forever since I've re-calibrated my Apex's temp probe. Since moving the controller from one tank to another, I'd like to make sure everything is accurate.

Thanks!
 
I have always used the ice water / boiling water method. You'll need a barometer to know what the boiling temperature should be. This method is generally accurate to within a 0.1ºC
 
Thanks for the reply. I'm hoping for something a bit more accurate. Even with the boiling water method, I'd still question the accuracy of the barometer. :)
 
I've always just used a couple different thermometers and just kind of averaged them together. I've never felt it was a necessity to be exact.
 
Thanks to @jonmos75 for letting me borrow his thermometer. My Apex temperature was reading ~1 degree low. It's now more in line with the set temperature of my neo-therm heater.
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