Attaches Xiaomi Light Detection Sensor, YTC4043GL, grey to windwo to measure outsite light. I glued it in with the glue pad, which is part of delivery of the sensor.
The small gap allows to press the button while mounted, and may be good help when the sensor shall be removed.
A suction cup is used to fix it at the window

MeCrator2

No

Yes

0.2

15%