Measuring, detection and monitoring instruments, devices and controllers; measuring, detection and monitoring instruments, devices and controllers capable of "Bluetooth Low Energy"; digital sensors; software, artificial intelligence software and machine learning software, software for monitoring, controlling and executing operations in the physical world; digital applications; all aforementioned products for use in undercarriages, track rollers, track chains, idlers, front idlers, rear idlers, sprockets, sprocket segments, carriers or upper rollers for earthmoving machines; apparatus and instruments for scientific and research purposes; audiovisual and information technology equipment; magnetic data media; radio-frequency identification [RFID] readers; radio-frequency identification [RFID] tags; labels with integrated radio frequency identification [RFID] chips; augmented reality glasses; augmented reality software; head-mounted augmented reality displays; augmented reality software for use in mobile devices; augmented reality training simulation software in the field of engineering; augmented reality training simulation software in the field of information technology; augmented reality training simulation software in the field of security; wearable computers in the nature of smartglasses; vehicle tracking devices; digital applications to measure the wear in a track chain and send the data directly to the recipient; sensors to measure in an automatic way the performance like wear, temperature, rotational speed of undercarriage systems and components in the heavy machinery industry