Features: This cruise control distance sensor maintains precise safety gaps using millimeter technology, directly replacing 28438 4RA1A for integration. Crafted from plastic with waterproof certification, the impact resistant housing withstands extreme temperatures while maintaining 360 degree obstacle detection accuracy. Ideal for owners seeking autonomous driving enhancements, particularly family prioritizing collision prevention during school runs and highway travels. Optimizes adaptive cruise performances during stop and go traffic, rainy highway drives, and low visibility conditions through real time distance calibration with forward vehicles. This sensor automatically adjusts inputs while storing 32 collision avoidance datasets in vehicle ECUs. Specifications: Material: Plastic Size: About. 65x65mm/2.56x2.56in Part Number: 28438-4RA1A 284384RA1A Package Includes: 1pc Cruise Control Distance Sensor Unit note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.