Which one should I use?

[Chickengal505]

I got two termometers/ hydrometers today at lowes home improvement. One is digatal and as big as a box of band-aids. The other is a HUGE bulky grandma thermometer with a hydro. dial at the bottem. I have my temp. stable in my bator just needed a hyrometer.

 

[pamperedpoultry]

I would use the smaller one, or if you have room use both and see how much of a difference there is