ELECTRONINVEST was established in 1994 and since 2005 has been an international manufacturer of systems for tracking vehicles, people and animals. The company develops and manufactures both hardware and software for follow-up. The headquarters are in Sofia, Bulgaria as well as having operating partners in 10 countries around Europe, Asia and Africa.ELECTRONINVEST is certified for the quality system ISO 9001:2008. SLEDA is a system that provides location information for vehicles, stopping places, downtime, driving directions and routes, mileage and speed. When using devices with CAN interface, there is possibly to transmit important information from the car&＃39;s computer. An example of such is information for fuel consumption, speed & temperature of the engine condition. All collected information is analyzed and processed by the SLEDA&＃39;s software, in order to enhance the work efficiency and reduce operating costs associated with the transportation activities of the companies. The main benefit when using SLEDA is its flexibility, which allows it to solve specific problems that occur to different customers. To Customizing SLEDA for company specifications and needs is no issue.ELECTRONINVEST has already installed more than five thousand GPS device in small and large fleet parks yet recognizing the importance of the follow-up system is widely used by many companies worldwide for fleet management and GPS tracking.