2 sensors for 1 window-sensor on dashboard?!

Hello,

just started with HomeAssistant and paired my first Zigbee-Sensor (TuYa TS0203). It’s a window sensor, so I expected to get a sensor which is “open” or “closed”.

Strange thing is I got 2 sensors: One which depends on wether the window is open/closed named “binary_sensor.windowsensor_room1_opening”. The other one seems to be always closed and is named “binary_sensor.windowsensor_room1_opening2”.

Anyone got an idea what the 2nd sensor might be?