Temp Calibration Issue

[Loralye]

Hi,
So I'm super confused and could use some advice. I'm just about to start my second batch in a day or so, the first all turned out to be yolkers, likely infertile. I have an older Brinsea Mini Advance that I'm using so I wanted to check and calibrate again before using. I was pretty sure I had it dialed in the last time, but always good to double check. I have the Brinsea set to 37.5 C, 2 thermometers inside are raised 20mm up, but both are reading out different numbers. It's been a couple of hours now and the ZooMed one is sticking around 37.8 the other is hovering between 37.2....

I don't have any other thermometers that I can use and pick my hatching eggs up in the next day or so. What should I do?

Sorry for the bad quality images

 

[CluckNDoodle]

You would need to calibrate one to check against the others. I bought an inexpensive meat thermometer from Walmart because I could calibrate it in water. I like the ice water calibration method it worked well for me but here is a great detailed link on calibrating thermometers.

https://www.backyardchickens.com/ar...incubator-thermometers-and-hygrometers.73634/

 

[Loralye]

Thanks. I just went out and bought a meat thermometer, go figure all the medical ones are sold out locally. I'll do the ice method, I just looked it up and it seems pretty straight forward, but how do I compare it the the ones that fit in my incubator that I can't put in ice/water? I read over that thread you sent...I think I'm missing something.

 

[CluckNDoodle]

The one you can calibrate will basically be the guide for you to be able to know how far off the other two are.

 

[Loralye]

I tried calibrating my meat thermometer, it's digital, says it's accurate when I do the ice cups but off by two degrees when I do boiling water. The highest it got was 98.1. I'm losing my mind