Too hot, too cold or just right

The Gro Egg Digital Room Thermometer by Keen is a nightlight/thermometer that my household couldn't be without. Since the air conditioning is so wonky in our house (hot in one room, cool in another) I rely on my egg in a strangely co-dependent way. My husband hates the egg because when he says that our daughter's room is cool enough, I have the courtroom-evidence-rebutle of "well, the egg says it's 74 degrees". If the room is too hot, the egg is red, too warm...orange, and just right...yellow...blue means too cold. Pretty complex for an egg.
Available on Amazon.