Aqara M1S Guide De Démarrage Rapide page 7

3. Add bridge accessories
After the hub is connected, please open the Aqara Home app, go to
"Accessories" page and tap "+" in the top right corner, and select the
accessory to add to the hub according to instructions. Please refer to
bridge accessory quick start guide for more details.
Installation
1. To ensure steady communication between the hub and its
accessories, it is recommended to install the hub at the center of
the area where the accessories are located.
2. Depending on the local environment, the indoor transmission
distance reaches up to 30 meters between the hub and bridge
accessories without barriers, such as walls.
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