A sensor wall placing Unmanned Aerial Vehicle comprising: a UAV frame; a plurality of motors connected to the UAV frame and capable of lifting and maneuvering the sensor wall placing UAV; a sensor casing, comprising at least one sensor and covered with adhesive; a mounting mechanism configured to detachably attach, via an interface, the sensor casing, during flight of the sensor wall placing UAV, the mounting mechanism being connected to a top part of the sensor wall placing UAV so that the mounting mechanism is facing upwards from the top part of the sensor wall placing UAV, and upon detachably attaching the sensor casing to the mounting mechanism, a face of the sensor casing faces away from the sensor wall placing UAV thereby enabling the sensor wall placing UAV to perform a maneuver that results in direct contact between the face of the sensor casing and a target wall; and a controller configured to: fly, using the motors, the sensor wall placing UAV to a target spatial disposition with respect to the target wall on which the sensor is to be placed; upon reaching the target spatial disposition, perform a maneuver of the sensor wall placing UAV, so that the face of the sensor casing is in direct contact with the target wall; and adhere the sensor casing to the target wall by activating the motors in a direction that generates a thrust of the sensor wall placing UAV towards the target wall for at least a given time period. a UAV frame; a plurality of motors connected to the UAV frame and capable of lifting and maneuvering the sensor wall placing UAV; a sensor casing, comprising at least one sensor and covered with adhesive; a mounting mechanism configured to detachably attach, via an interface, the sensor casing, during flight of the sensor wall placing UAV, the mounting mechanism being connected to a top part of the sensor wall placing UAV so that the mounting mechanism is facing upwards from the top part of the sensor wall placing UAV, and upon detachably attaching the sensor casing to the mounting mechanism, a face of the sensor casing faces away from the sensor wall placing UAV thereby enabling the sensor wall placing UAV to perform a maneuver that results in direct contact between the face of the sensor casing and a target wall; and a controller configured to: fly, using the motors, the sensor wall placing UAV to a target spatial disposition with respect to the target wall on which the sensor is to be placed; upon reaching the target spatial disposition, perform a maneuver of the sensor wall placing UAV, so that the face of the sensor casing is in direct contact with the target wall; and adhere the sensor casing to the target wall by activating the motors in a direction that generates a thrust of the sensor wall placing UAV towards the target wall for at least a given time period. fly, using the motors, the sensor wall placing UAV to a target spatial disposition with respect to the target wall on which the sensor is to be placed; upon reaching the target spatial disposition, perform a maneuver of the sensor wall placing UAV, so that the face of the sensor casing is in direct contact with the target wall; and adhere the sensor casing to the target wall by activating the motors in a direction that generates a thrust of the sensor wall placing UAV towards the target wall for at least a given time period.