Hand-held tester function:Handheld detector is non-contact detector device,detection area as max 150mm,with this area,all kinds of eas tag can be detected with sound alarm.Can detect a variety of merchandise anti-theft soft/hard tags and anti-theft bind belt. Suitable for supermarket, medicine store, chain store, clothing store. security guard use politely handheld detector check suspect customer who not pay,it can avoid some impolite of seaching body and bad attitude action to assure mall and maintain public image. Application:Security staff inspects the goods with eas tag; tag inspection of tag manufacturer; tag loction detection and protect goods when supermarket checker put eas tag Notification:This device is non-mantatory detector,client must agree it. when using,must be far away from working detection door,or lead ring. Remark (please pay attention):9V BATTERY DO NOT OFFER, Frequency range: 8.2MHZ Detection Area:100-150mm Power:9V alkaline battery Color: White Material: plastic Package Contents: 1 x Handheld Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.