food x ray inspection equipment

Super Scanner Hand Held Metal Detector 22KHz Frequency UNX3003B1 For Hotel Metro

Hand Held Metal Detector UNX3003B1 Security Equipment Hotel Metro Product Features : 1.High Sensitive , 2.Simple , Convenient , No adjusting ; 3.9V fell to7V , detection range is constant ; 4.Save electricity , continuously work more than 40 hours ; 5.Alarm by buzzing or vibrating ; 6.Automatically buzz or vibrate continuously , when the battery run out Product Features : 1.High Sensitive , 2.Simple , Convenient , No adjusting ; 3.9V fell to7V , detection range is constant ;