Hi @Oliv29! I strongly recommend using ZwaveJS or ZwaveJS2mqtt via Node-RED for this type of device.
Some resources:
As @Tlse-vins said, the ZWave integration currently in Gladys is based on a library that is no longer maintained. A migration project to ZwaveJS was started by a contributor, but it’s not for the immediate future.. 
In the meantime, going through Node-RED is the best solution!