RFXtrx doorbell sensor

I have some Siemens RF433Mhz Door sensors with magnet (Model DCACC4) they only send a signal when the door is opening.
The signal is only 14 and it stay 14 even if i close the door and open it again.

I have added the fire_event: true but it still says 14.

sensor:
 - platform: rfxtrx
   automatic_add: true
   devices:
     07160012009f0e70:
       name: Doorbell
       data_type:
       - Sound
       fire_event: true

Any help or will they have to be put in the bin?

Since your senor only sends a signal when the door is opening, the state will always be 14.

If you want to use your sensor for automation, you can listen for the fired event: