This Project provides an in-depth overview of RFID (Radio Frequency Identification) technology, its applications, and troubleshooting methodologies for various RFID systems such as the Impinj R400 reader, Ubisense RTLS, Zebra tag printer, Alien reader, RFID door lock system, and handheld readers at RAID Labs. It explains RFID’s working principles, components, and its utility in automating inventory management, enhancing supply chain efficiency, and improving security. By following a systematic troubleshooting approach, issues with these systems were resolved, enabling their smooth operation. The report also includes Standard Operating Procedures (SOPs) for future reference and explores experiments for optimizing system performance, tracking object movement, and enhancing efficiency in practical applications.