Why can't the air humidity be measured on the perpetual calendar?

The reasons why air humidity cannot be measured on the perpetual calendar are as follows:

1, the transformer in the perpetual calendar is burnt out, which leads to the disconnection from the external power supply, and thus the digital perpetual calendar cannot be started and displayed.

2. The circuit board of the movement of the perpetual calendar is broken.

3. The circuit board of the movement in the perpetual calendar is broken.