RFID solution UHF RFID reader for Files management Document tracking Here is the video https://www.youtube.com/watch?v=IqhwY-3N5Tk&feature=youtu.be       Here, we say in two parts   1. Real time checking for the files on the shelf. You can know the files on which shelf, it is easy to find the files as you want   c. Install 4 port rfid reader(VF-747) in a suitable position. it can connect 4 antennas.(or Connect multiplexer VX-3M,) The reader connect with the PC or sever by TCP/IP. You can use the RF Cable connect the reader to antenna. Usually, the distance should be control within 6m to get a good performance.   Then the reader will get the tag information(files) in real time, you can write the antenna position in the database. from the antenna, we can know where the files in the shelf   2. Install the RFID Antenna at the corridor door, when the files go through from the door, it will know which room the files go               FAQ 1. You are manufacturer or trading company?     We are original equipment manufacturer in RFID UHF reader for over 10 years.  2. How is your QC?     We have strict QC process and all the products will be 100% testing before shipping. 3. What is your payment term?     100% payment should be paid before shipping. 4. What is your payment way?     T/T, Western Union,Paypal, MoneyGram 5. What is your warranty?     Wthin 1 year. 6. Can I get technical support from you?     Sure. Our sales are of all good knowledge in the field. Besides, we have a technical team behind to support.   If you wanna know more specific about our RFID products,Please feel free to contact us: