Is it normal for the hotel room temperature to keep showing 19 degrees?

The hotel room temperature keeps showing normal 19 degrees. The temperature of a hotel room can be kept at about 20 degrees. Explain that the temperature of the hotel room is always kept in a constant temperature environment. Usually, when the hotel room is unoccupied, the doors and windows of the room are all closed, and the curtains of the room are all closed. This is a closed room. The temperature will remain constant. So the hotel room will be kept at about 20 degrees.