With this add-on for autonomous operation, the netANALYZER box NANL- B500G-RE is even more flexible in use. Operate the netANALYZER with a USB storage medium and the REC button on the front side even without a connected PC. Thus, if necessary, an employee can carry out a recording "on-the-spot" without a deep knowledge of the subject. Furthermore, in combination with netANALYZER Scope software, trigger conditions can be defined that allow long-term monitoring for sporadic problems. When the trigger occurs, a data snapshot is stored on the USB medium. This ensures that only the relevant data amount is stored even during long measurement times.