DSI SR210-S1 UHF RFID Shelf Reader DSI SR210-S1 UHF RFID Shelf Reader Secure passive tags with accurate localization capability with shelf readers Shelf reader is specifically designed for accurate localization inside inventory shelves and binssupport up to 32 small antennas with varying cable length to accurately localize the shelved items Small shelf reader antennas (cable size adapts to the shelf topology)