Rayco i4000 is a range limiting device for all types of excavators and other kinds of construction machinery. This state-of-the-art system uses advanced technology and has been a trusted instrument in the industry for 35 years. It has a compact control unit that is equipped with a colored graphic display and an intuitive design that is easy to program. Its self-diagnostic function, internal memory and its processor make it a dependable and versatile tool. The i4000 is durable, reliable and effective. Many innovative improvements have been made to simplify its installation and maintenance.