Mobotix MX-OPT-BOX-1-EXT-IN | Single In-Wall-Housing Frame

The blue housing is firmly connected to the subsurface or brick work. It can also be used to ensure easy installation in cavities: Drill opening, position housing and screw tightly in place; the retaining wings, which automatically swing out, secure th e housing, while the plastic bars at the edge of the housing prevent it from sliding into the cavity