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3992 UHF RFID reader UART or USB(ISO18000-6C EPC G2)

3992 UHF RFID reader UART or USB(ISO18000-6C EPC G2)


What is this?

It is a  Long Range UHF RFID Reader, which is an important way to read information and input information.

399X distance reader has many advantages such as: compatibility with different protocols, high reading speed multi-tags reading, linearly polarized antenna, waterproof appearance designing and etc. It can be widely used in RFID systems, and is very friendly to further development based on it.


Typical applications:

  •  Logistics and warehouse management: Management of goods flow and storage, and mail, package, luggage transportation and etc.
  •  Intelligent parking management:Parking management and charge automation.
  •  Production-line management: Identification of production process points.
  •  Product anti-counterfeiting detection: the write protection from tag’s internal memory can be used to detect the products’  authenticity
  •  Other application: widely used in club management, libraries, student status, consumption management, swimming pool management and etc.



    According to the actual needs, this UHF RFID reader can be with the most suitable directional antenna with appropriate gain (5.5dBi, 8dBi and etc) to achieve the best performance.


    There are two different interfaces: TTL UART and USB. Recommended antenna can be ordered at: 



Working Frequency

China standard (920~925MHz), American standard (902~928MHz), European standard (865~868MHz) , 840MHz~960MHz working frequency


ISO18000-6C (EPC GEN2), compatible ISO18000-6B

Antenna gain

8dBi directional antenna

RF power

MAX 20dBm

Card reading distance

Passive tags identification distance adjusting range1 to 4 meters

Card reading time

Reading time of multi-tags 64 bit ID <6ms

Modulation mode


Antenna interface


Supporting interface

High speed USB or TTL Uart (RS232) communicate with PC applications

Working power

DC3.3V 2A

Read indicator

Can be programmed. GPIO output can be set



Working temperature

20 degree C  +80 degree C

Storage temperature

40 degree C to +125 degree C

Working humidity

20% to 95 % (No condensation)



Antenna dimensions

8”× 12”×2”




1. If you want to program the MCU on the board, you also can buy the C8051F simulator from here:

2. We have some kits of this reader. With this, you will not worry about what accessories you need.

3. How to quick start to test if the AS3992 reader works?


You can download the files of as3992 reader from here:

The source code of reader suite software:

Shipping List:

  • as3992 reader board *1
  • 3.3V/2A power adapter *1
  • EPC GEN2 tags *2
  • 5dBi PCB antenna *1

Add to Cart:

  • Model: SD_UHF RFID_R001
  • 49 Units in Stock
  • Manufactured by: SOLID Technologies

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AS3992 Reader Interface

Working Frequency of Reader

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