Major retailers including Wal-Mart, Carrefour, Metro, Tesco, and Sainsbury have all endorsed the concept of RF tagging of goods at source. At present some suppliers are reluctant to implement it although the equipment providers claim set-up costs are only around £10,000. The RF tags are not run from one industry standard radio frequency by all tagging companies, although there is a consistent frequency used across Europe Neil Matthews, deputy md of supplier Checkpoint Meto, said: "We need to sort out standards issues on RF tagging globally. We need consistency to sell it to the industry." The technology could eventually see space age applications such as tags in clothing carrying washing instructions to be read by washing machines. Disposable items could store their own recycling instructions. And robots could be programmed to make items from tag specifications. {{NEWS }}