Check the listing for details. Vtg Radatron Cruise Sentry 1 Electronic Speed Control Complete in Box. Condition: New. Listed at 120.00 USD. Vintage Radatron Cruise Sentry 1 Electronic Speed Control Complete in Box Mark IV is a rebuild kit for electronic speed control systems in cars. This kit includes all the necessary components to ensure precise and efficient control of your vehicle's speed. Perfect for restoring classic cars or maintaining modern vehicles, this product offers reliability and performance for a seamless driving experience. This kit has never been installed ~ Complete with all parts. Free shipping in the U.S.A. excluding Alaska & Hawaii. Thanks for looking!!!