What thermometer/hygrometer combos have you had success with? Right now I've got a couple of cheap ones that line up pretty close to each other but I don't really know how accurate they are. I ordered a brinsea spot check thermometer and it fluctuates up and down 3-4 degrees. My incubator is in a draft free room so I doubt the temp is fluctuating that much inside the incubator. It also stopped working and just has a flashing L. I'd really like to find a reliable combo, so if anyone has one they swear by, please share!