With my new r-com 20 that came today
I just plugged it in and not much else. Well, I put my springfield thermo/hydro and my digital meat thermo in there to see how they matched up. At 40% humidity on the r-com the springfield reads 25% and at 70% on the r-com it reads 47%. No wonder why I keep having trouble!!! I did calibrate the thing but it it seems it is off by a different amount. Good thing is that my digital meat thermometer is spot on. I put it back in the LG w/ forced air and get a different reading every time I move it to a new spot. Hoping I can now get the LG right so that I can use it for a hatcher since the r-com doesn't hold too many eggs.
