The Valeo Parking Aid Sensor - 890019 is a vehicle safety device designed to assist drivers in parking and maneuvering their vehicle. It uses ultrasonic technology to detect objects in the vehicle's path and alerts the driver through audio and visual signals. The sensor is typically mounted on the front or rear bumper of the vehicle and can be integrated with the vehicle's existing parking system. It is a compact and durable device that helps drivers park with ease and avoid collisions.