Are Light Sensors LF/U 1.1 and LF/U 2.1 compatible with each other?
These two Light Sensors are not compatible with each other. They are assigned to different device generations. If devices with connected LF/U 1.1 are to be replaced, then the Light Sensor must absolutely be replaced as well. Please check in advance!
The LF/U 2.1 is the successor to the LF/U 1.1.