I bought THIS digital thermometer/hygrometer for my boss' Hova Bator Thermal Air Incubator. We used the thermometer that was included with it for several days before the digital one arrived. The analog thermometer stayed just below 100F mark. The digital is holding humidity at 55% but the temp keeps fluxuating. It will drop to 96.6F then gradually rise to100.2F and will sit at either one for an hour or more before fluxuating again. Even when I raised and dropped the thermostat the digital didn't change. Thing is the analog thermometer didn't budge. I took the analog thermometer out and set it up beside my rooms thermostat. The analog was reading 2F lower than whatever my house thermostat read. I'm not sure which is accurate and which thermometer reading I should go by. I have NO IDEA how to calibrate a digital thermometer/hygrometer (or even an analog one). Worried the temp was really fluxuating and damaged my eggs (I have 1 peafowl egg on day 10 and 6 serama eggs on day 1) I attempted to candle but couldn't find my candler. I tried a high powered focused LED. Cant tell with the serama eggs yet but the light wasn't strong enough to see through the peafowl egg. All I could see was the air sack (which looked to be the right size) and the rest of the egg was dark. Then again, I don't really know what I'm looking for in a peafowl egg on day 10 and like I said the light wasn't really strong enough to tell for sure. I'm pretty clueless right now and am looking for some advice from experienced hatch-a-holics or anyone with peafowl incubation exp. THANKS!