The latest version of Business Week reports that each of the hypermarkets is installed in succession of anti-theft sensor. Any product not scanned with bar-code scanned will be alerted. As for electronic products equipped with refined and electric wire that they cannot be detected, it is necessary to installed with aluminum foil at the back of the packaging for insulation and the aluminum foil has to face upward after scanning, it can then effectively insulate sensor alert. For the latest news, do give us a phone for inquiry.