A rearview device for a vehicle (17) includes at least one sensor for detecting information of the environment of the vehicle, where the rearview device is attachable to the supporting structure of the vehicle by using at least one first fastening device, and the rearview device includes at least one arm which is rotatably mounted by the first fastening device about at least one first axis of rotation which has at least one vertical component about at least one first pivot point for a first rotation.