Park easily and avoid scratching your car with the parking sensors, designed to calculate space with maximum precision.   Parking sensors. 2 sensors Reference: 000054752A 4 sensors Reference: 000054751A Parking sound timer, starts through the proximity sensors situated in the car bumper for reversing. When an object is situated 160 cm from the bumper the sound frequency rises until you are 30 centimetres from the object.   Front parking sensors. 2 sensors. Reference: 000054758. Parking sensor with automatic activation system. The acoustic signal is activated when object is within a distance of 160 cm and increases up until a distance of 30 cm from the obstacle.           Parking sensors. 2 sensors in the plate. Reference: 000054753. Parking sound timer, starts through the proximity sensors situated in the car bumper for reversing. When an object is situated 160 cm from the bumper the sound frequency rises until you are 30 centimetres from the object.