Suitable for: 3 modules, outdoor area - The blue housing is firmly connected to the substrate or masonry. It can also be used for easy installation in hollow spaces: drill an opening, insert the housing and screw it tight - the automatically swinging out retaining wings fix the housing securely, while the plastic bars on the edge of the housing prevent it from slipping into the hollow space. - Required installation opening: 117 x 318 mm (width x height) - Permissible wall thickness for cavity installation: 7 to 27 mm
