Grillstone Electronics Technology (HK) Limited. is a new high-tech enterprise, professionally specialized in the RF-EAS(Radio frequency-Electronic Article Surveillance) security label production, research and development. Our brand- Grillstone electronic goods monitoring label compatible all 8.2Mhz RF technology system, is used specially for those need long detection range and deactivated places, such as supermarket, department store, mall, library and so on.