His temps are measured with a digital indoor/outdoor thermometer with a probe over the UTH. His humidity is measured with a digital reader as well. UTH controlled by a thermostat. I obviously double checked their accuracy during the course of this situation against new gear. I also check them periodically against the temp gun. Im pretty confident they're good. The only thing was the old hygrometer had been off by a couple %, nothing major but it had been replaced. Believe me, I exhausted all avenues with equipment checks, husbandry, and medical before opting to assist feed.