UHF RFID Card Reader ID-UCR-RD901M (Wiegand 26/34, RS485)

What this UHF RFID card reader does

The ID-UCR-RD901M is a UHF RFID reader with its antenna built into a compact ABS housing, made for access control and attendance rather than long-range tracking. It reads ISO 18000-6C (EPC Gen2) cards and tags at 0–1 m and passes the card number to a door controller or attendance system over Wiegand 26/34 or RS485.

Why a short read range helps at doors

At a door or turnstile the reader should respond to the person presenting a card, not to everyone walking past in the corridor. A 0–1 m read distance, with output power adjustable from 15 to 26 dBm, keeps the read zone tight in front of the unit. If you need hands-free reads from further away, for example at a conveyor checkpoint, compare the 3 dBi integrated UHF reader.

Connecting to your access control system

• Wiegand 26/34: the common input on door controllers and attendance terminals, so the reader can sit alongside or replace an existing card reader.
• RS485: for controllers and software that poll readers over a serial bus, including longer cable runs.
• Power: 12 V DC at 1 W or less, a supply that access control panels commonly provide.

A buzzer and LED confirm each successful read, so users know when to walk through. The reader handles more than 20 tags per second, so a quick queue at a turnstile does not hold it up. Our RFID door access setup guide walks through wiring a reader, controller and lock.

Cards and tags to use

The reader works with any ISO 18000-6C UHF card, key fob, wristband or sticker, and its 860–960 MHz range covers India's 865–868 MHz UHF band. Older 125 kHz and MIFARE (13.56 MHz) cards will not read on it, so staff need UHF cards. Printed UHF cards can carry a photo and name on the same card that opens the door.