Located very close to the CA/OR border coastal town of Crescent City CA. I tested with a digital temp/humidity and also with a dial type. Tested inside w eggs and also outside with in the room where the incubator is set up. Both temp an humidity matched. Right now room humidity is 39 w a temp of 73 (wood stove going) and in the incubator temp is 99.6 humidity 40 w no water in the cup inside.