Incubator Temp Discrepancy

[coyotecrestbirds]

Hello all, I am going to be incubating my first duck eggs and I am having an issue with temp.

I'm using an older (1970s) Marsh Turn-X incubator. I know it works because I've been successful in the past with chicken eggs. I'm trying to get it tuned to the right temp/humidity - I'm using a brand new digital hygrometer/thermometer, but I noticed there's a 2-degree discrepancy between it and the analog thermometer the incubator came with.

Is there one I should trust over the other or another solution you might suggest?

 

[JacinLarkwell]

Did you calibrate the added thermometer?

 

[beluga3858]

What make/model is your digital thermometer?

The ones that are fully digital are generally very high accuracy. I use the small square Xiaomi mijia Bluetooth ones and haven't gone back to a old linear thermometer in years.

 

[BrandonsBirbs]

Calibrate your external one and then you can see more clearly.