Features: Product Summary: The 8508211 upgraded proportional trailer brake controller features advanced constructed in detectors for automatic decelerating adjustment based on towing vehicle speed and decelerating intensity, ensuring stable and consistent execution for single rod trailers (2/4/6/8 brakes). Constructed of permanent aluminum alloy, it replaces Brake EVN 8508220 and improves upon the 8507111 Delay Brake INTRAVENOUS model. Utilization Beneaccommodatesecond: Enjoy polisher decelerating with this global controller consistent Stream, MANAGER, , Avoid, STORAGE, , and Suv. Its proportional decelerating structure automatically adjusts trailer brake force for secure towing in various road conditions, providing efficient steering and decreased stopping distances. Standard Promisemail: Constructed with excellent aluminum alloy for thin durability, this compact (2.8x7x11cm) brake controller resists oxidation and wear. Accuracy engineering ensures extended reliability and consistent execution under heavy towing cargo. Agreement Particularsecond: Developed for single rod trailers with 2/4/6/8 brakes, it seamlessly integrates with most modern towing automobiles. User Guidancemail: The inherent LED display shows live assessment, and guide handle allows effortless decelerating control. Specifications: Substancemail: aluminum alloy Product sizemail: 2.8x7x11cm (as shown in the picture) Part numberebog: 8508211 Compatiblemail: For single rod trailers Package Includes: Controllerx1 note: Before using the accessory, please check if it is compatible.