The detection zone of a BlueZoo sensor is impacted by the walls, floors, and ceilings around it. Wi-Fi signals, as any homeowner knows, are attenuated by wood-frame-and-sheet-rock walls and even more so by brick-and-mortar or concrete walls.
Often, heavy walls will delimit the detection zone, though clear glass will have no impact. While the sensor calibration process can accommodate the presence of light or medium wall types, installers should be aware of this impact.
Masonry walls (e.g. concrete) will generally delimit the BlueZoo detection zone. Commercial buildings typically separate floors with metal decking and this decking will similarly block all Wi-Fi signal transmission.
This is why commercial buildings need separate access points on each floor.
Masonry walls (e.g. brick) will greatly attenuate the penetration of Wi-Fi signal broadcast by mobile phones, but may not block the signal completely.
Smoked glass will attenuate Wi-Fi signals to a similar extent due to the metal flakes often embedded in the glass panes.
Glass Windows and Walls
Glass windows and walls have effectively no impact on the transmission of Wi-Fi signals.