It is really convenient hygrometer thermometer in the room of a child, small and sober, it adapts to all the decorations. Several attachment system (for pause, ask him or magnetize) allow you to choose a discreet place near the bed, it is simple to use and intuitive, no need to delve into the manual! The temperature is very precise but the humidity gives an indication. It is however, according unless, of sufficient whether the room is humid enough, I do not think it needs the exact percentage.