How RFID Scanner Work?

A RFID reader / scanner is a two-way radio transmitter-receivers called interrogators or readers send a signal to the tag and read its response. RFID tags can be passive, active or battery-assisted passive. RFID reader /scanner is a device that uses radio-frequency waves to wirelessly transfer data between itself and a RFID tag /label attached to the objects in order to identify, categorize and track assets.