Electric gatekeeper for a residence, this electric gatekeeper comprising: - a front face that is directly accessible from the outside of the residence, - a label-holder equipped with a front face intended to be exposed to the outside of the residence, the front face of the label-holder being: - either combined with and formed in a single block with the front face of the electric gatekeeper, - or produced in a block of different material from the front face which is fitted into a recess provided for this purpose in the front face of the electric gatekeeper, - at least one replaceable label, that can be moved between an inserted position in which the label is fixed onto the front face of the label-holder, and a removed position in which the label is mechanically independent of the label-holder, the label comprising: - a front face on which is written a name of a resident, - a rear face provided with at least one pin, and - at least one shoulder situated on the pin of the label, and - in which the label-holder comprises at least one locking arm that can be moved between: • a locked position in which the locking arm locks the label in the inserted position in a form-fitting manner with the shoulder, and • an unlocked position in which the label can be freely removed from the label-holder, characterized in that: - the locking arm is moved between its locked and unlocked positions only by a movement parallel to the front face of the label-holder and with no movement in a direction at right angles to the front face, and - the locking arm is only rotationally mobile about an axis at right angles to the front face of the label-holder. - a front face that is directly accessible from the outside of the residence, - a label-holder equipped with a front face intended to be exposed to the outside of the residence, the front face of the label-holder being: - either combined with and formed in a single block with the front face of the electric gatekeeper, - or produced in a block of different material from the front face which is fitted into a recess provided for this purpose in the front face of the electric gatekeeper, - either combined with and formed in a single block with the front face of the electric gatekeeper, - or produced in a block of different material from the front face which is fitted into a recess provided for this purpose in the front face of the electric gatekeeper, - at least one replaceable label, that can be moved between an inserted position in which the label is fixed onto the front face of the label-holder, and a removed position in which the label is mechanically independent of the label-holder, the label comprising: - a front face on which is written a name of a resident, - a rear face provided with at least one pin, and - at least one shoulder situated on the pin of the label, and - a front face on which is written a name of a resident, - a rear face provided with at least one pin, and - at least one shoulder situated on the pin of the label, and - in which the label-holder comprises at least one locking arm that can be moved between: • a locked position in which the locking arm locks the label in the inserted position in a form-fitting manner with the shoulder, and • an unlocked position in which the label can be freely removed from the label-holder, • a locked position in which the locking arm locks the label in the inserted position in a form-fitting manner with the shoulder, and • an unlocked position in which the label can be freely removed from the label-holder, - the locking arm is moved between its locked and unlocked positions only by a movement parallel to the front face of the label-holder and with no movement in a direction at right angles to the front face, and - the locking arm is only rotationally mobile about an axis at right angles to the front face of the label-holder.