2 different Readings

[chickbrad24]

1. Hello and thank you all inadvance for reading this post.
   
   As I have just purcahsed hatching eggs off ebay. I set my incubator up 3 days ago and just set the eggs yesterday. I am getting 2 different readings on humidity. My little giant still incubator is reading humidity at 51% my new digital thermometer and humitdity reader is saying humidity is at 39% but the temp is the same on both whcich one do I go by ? As the humidity reader is inside the incubator and the little giant still incubator reader is on top of the eggs.
   
   
   Some advice would be greatly appreciated.
   
   Thank you
   Bradley.

 

[paneubert]

Since you have eggs going currently, there are not a lot of options to calibrate things. So for now I would average the readings. Luckily humidity is totally fine to be within a pretty broad range when compared to temperature. Shoot for it to read between 20-40% when averaged.
When this hatch is done, Google the "Salt test" for calibrating the digital thermometer/hygrometer for next time.