The tractor driver will turn your old tractor into a modern farm tractor using a phone or tablet. The device used should have a built-in or connected GPS receiver. Thanks to the tractor, your old tractor will gain the speedometer and the ability to control the area being cultivated. Thanks to this you will be able to control the field being cultivated as well as the work of the farm tractor. In the application, you read: - speed in km/h and mi/h, - meter status in km and mi, - state of work done in ha and acr - km or miles traveled during work, all on 5 different dashboards that you can change by slide dashboards or by clicking anywhere on the dashboard (except for the control buttons). The app will be useful to every farmer in the field. Thanks to the application, we obtain fast and reliable information about the state of work in a given field. By using the sprayer you will know the speed of travel regardless of the course you use and surface control will allow you to optimally use plant protection products. Suggestive information will allow you to easily maintain a constant speed and minimize deviations. APPLICATION THE ENTIRE TIME USE A GPS MODULE WHAT CAN QUICKLY DISCHARGE THE BATTERY. We welcome your feedback and wishes regarding the application. We wish you a pleasant job.