The Room Control - Recessed Wall Mounting Box for Drywall Installation is the back box that PIERRE room control displays recess into. It is made for plasterboard, dry lining and stud partitions, where it is clamped through the board rather than set into masonry.

The box measures 83 x 83 mm with a depth of 50 mm and weighs 61 g. That depth is what the room control displays require behind the plate.

Fit it at first fix with the mains supply and any data cable already pulled into it. For solid walls, use the Room Control - Recessed Wall Mounting Box for Brick and Concrete Walls instead.