Cycle time reducing smart IoT track & trace device for non powered returnable transport items (RTI's) such as A-frame glass racks or stillages for processed glass, windows... The device knows the loading status and send his exact location for collection. By impoving cycle times, a lot of hidden costs can be reduced such as trapped cash in assets, less administraive costs, no more line stoppages due to lack of stillages, reduce the likelihood abondonned RTI's are stolen, lost or vandalized,...