UR4 Fixed UHF Reader

Outstanding RFID performance

Chainway UR4 is a 4-port fixed UHF RFID reader configured with an Impinj R2000 RFID module.  Supporting RS232 and RJ45 and compatible with a variety of antennas, the UR4 is highly integrative with many different environments and use cases. 


Power Supply DC 12V Power Supply IMPINJ Impinj R2000 Chip
Design Stylish Design Supports RS232/RJ45
Antennas Compatible with Various Types of Antennas
Power Supply DC 12V Power Supply
Design Stylish Design
Antennas Compatible with Various Types of Antennas
IMPINJ Impinj R2000 Chip
Supports RS232/RJ45



Tshirt Clothing and Footwear Retail
Vending Machines Vending Machines
Archives Archives and Library Management
Jewelry Jewelry Monitoring
Intelligent Manufacture Intelligent Manufacture
Inventory Inventory Management


Tshirt Clothing and Footwear Retail Jewelry Jewelry Monitoring
Vending Machines Vending Machines Intelligent Manufacture Intelligent Manufacture
Archives Archives and Library Management Inventory Inventory Management


Physical Characteristics
Dimensions 102.8 mm(L) x 102.8 mm(W) x 28 mm(H)
Weight 329 g / 11.6 oz.(without antenna)
Material Aluminium alloy
Input Voltage DC 9V – 12V
Standby Current < 30mA
Comm Interface RS-232 / RJ45
GPIO 2 channel input optical coupling, 1 channel output electric relay, 1 channel output optical coupling (in reserve)
Baud Rate 115200 bps
Cooling Mode Air cooling
Work Current 800mA +/-5% @ DC 12V Input
Ethernet interface 10/100 Base-T Ethernet (RJ45)


Developing Environment
SDK Windows, Linux, Android


User Environment
Operating Temp. -25 °C to 65 °C
Storage Temp. -40 °C to 85 °C
Humidity 10%- 95%


Engine CM2000-4 module based on Impinj Indy R2000
Frequency 865-868 MHz / 920-925 MHz / 902-928 MHz
Protocol EPC global UHF Class 1 Gen 2 / ISO 18000-63
Antenna Supporting a variety of antennas, such as 6dBic, 9dBic
Output Power 1W (30dBm, support +5~+30dBm adjustable)
2W Optional (33dBm, support +10~+33dBm adjustable, for Latin America, etc.)
Output Power Precision +/- 1dB
Output Power Flatness +/- 0.2dB
Receive Sensitivity < -84 dBm
RSSI Supported
Ambient Temp Monitor Supported
Fastest Read Rate 900+ tags/sec
Antenna Detector Supported
Antenna Port 4 channel 50Ω SMA port



Documents & Manuals

UR4 Data Sheet
pdf icon


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