Installation using a sticker and a bracket
Option 1.
There's a round bump at the bottom of the plastic enclosure of the sensor. It is used for fastening when the sensor is mounted
together with the on walls using a screw. In the current example, it is not needed. If you are planning to mount a device
differently, do not follow this step.
Cut the round bump using a knife so that the bottom of the plastic enclosure will be flat.