4NRJ Codes makes it possible to quickly identify professional equipment thanks to a QR Code traceability solution. A scan of the QR Code label on a tool indicates the status of the periodic check at a given time. Visualization of the conformity or nonconformity of the tools makes it possible to take corrective actions immediately. The controls are carried out by the authorized persons. Centralized management offers a global vision of the toolbox allowing to allocate and optimize the allocation