UHF RFID Integrated Reader ID-IUR-3DBI (3 dBi, Wiegand + RS485)

Hands-free UHF access reader with Wiegand and RS485

The ID-IUR-3DBI is a compact UHF RFID reader with its 3 dBi antenna inside the same wall-mount housing. It reads EPC Gen2 cards and tags at 1–3 m and sends the ID out over Wiegand 26/34 or RS485, the two outputs most access control and attendance panels in Indian offices and factories already accept. That makes it a direct way to turn a tap-to-enter door into a walk-through one without replacing the controller.

Why UHF instead of a proximity card reader

125 kHz and 13.56 MHz readers need the card held a few centimetres away. A UHF reader picks up a card on a lanyard at 1–3 m, so the read happens as people walk in and queues at shift change shrink. Because it is UHF, it needs UHF cards: existing proximity or MIFARE cards will not read. Plan new UHF cards for each user, or dual-frequency cards if the old system has to keep working during the changeover.

Wiring it in

• Wiegand 26/34: connect to the reader input of an access panel or attendance terminal and match the bit format the panel expects.
• RS485: use it for longer cable runs to a controller or PC that collects the reads.
• LED and buzzer: give the user a clear signal that the card was read.

Where it fits

The housing is meant for indoor installation: office and factory entry doors, attendance points at shift gates, service counters, stockroom doors for retail loss prevention, and inventory checkpoints on conveyors where tagged cartons pass a fixed point. For vehicle lanes or reads beyond 3 m, look at the 9 dBi and 12 dBi models in the integrated readers range. For the software and roll-out side of attendance, see the RFID attendance management guide.