moody

Hi Guy's, I don't know iff you will be able to help me or not but i will give it a try anyway. I am looking for a detector unit that will detect a tag, the type that you find in shops and supermarkets fixed to high value items. It needs to be a free standing unit that can be positioned anywhere, with a detection range of 20 metres through 360 degrees. I need it to tell me when a tag comes to within 10 metres of the control box from any direction. I have searched high and low for a ready made unit to do this task but have not been able to find anything that fits the bill, so if any body has any idea's i would love to hear from you. Many thanks Kev.