The MaxDoor by Brazil-based Nodesign is like no other front door. The doorknob is a sensor that can be touched to open. A remote control device locks and unlocks the door, which is aluminium, but covered by a rubbery finish and rubber seals that block out noise.
Red sensors spell out the house or flat numbers and a secret slot opens for post delivery. The door may only have its place in luxury apartments, but it's already moved beyond the concept stage, so it could already be in some homes.
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