Vehicle tracking businesses supply and support systems that show the location and status of cars, vans, lorries and other vehicles. Most use GPS devices fitted to a vehicle, with data sent over a mobile network to an online platform or app. Customers may use these systems to locate vehicles in real time, review past journeys and receive alerts when a vehicle enters or leaves a defined area, moves outside set hours or is used without authorisation. Services can include advice on choosing equipment, installation, device maintenance and access to tracking software, often provided on a subscription basis. Fleet systems may also record mileage, journey times, vehicle use and information about driving behaviour, helping businesses manage schedules, fuel use and vehicle records. Some providers offer links with fleet management or job scheduling software, driver identification, theft-recovery support and vehicle immobilisation features.