Weird humidity reading?

[JustAChickenLoverOverHere]

I have 3 different hygrometers in the incubator (I know, it's a lot for a single incubator) the problem is, the incubator humidity read 48 percent, the same as 2 hygrometers from the same brand, and the other hygrometer measures 38 percent. Which one do you guys think is right? Also, any good incubators that you guys recommend that are under 160 dollars?

 

[ChickenCanoe]

There is no way to know which is accurate. I've had hygrometers that were way off.
The critical thing is to have a precise thermometer.
I love this extremely accurate Bluetooth combination thermometer/hygrometer.
https://www.amazon.com/Govee-Thermometer-Hygrometer-Bluetooth-Temperature/dp/B07R586J37