An Excellent RFID Solution Provider in China

Programmable RFID desktop reader

Model No.: QSF4200

Our QSF4200 is a high-performance UHF desktop reader ,which with built-in antenna and reading distance can reach 1m. Combined with a unique high-efficiency signal processing algorithm, it achieves high reading rate while achieving electronic labeling. Fast read and write processing, can be widely used in logistics, access control and other radio frequency identification systems.


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Frequency 860-868MHz/902-928MHz
Protocol EPC Gen2(ISO18000-6C), ISO18000-6B
Dimension 420*300*24mm
Net Weight 2.85kg
Interface RS232, RS485, Wiegand 26/34
Antenna gain Built-in antenna
R/W Range >30cm
Voltage 9V
Power 3.15W

Serial Communication Interface RS232(DB9 Male)

No. Symbol Description
1 NC Reserved
2 TXD Serial communication data output
3 RXD Serial communication data input
4 NC Reserved
5 GND Signal
6 NC Reserved
7 NC Reserved
8 NC Reserved
9 NC Reserved

USB Interface(Communication and power supply

Electrical characteristics

Item Symbol Figure Unit
Supply Voltage VCC 16 V
Operating Temp TOPR -10~+55
Storage Temp TSTR -20~+75

Specifications(Except for special instructions, the specifications are from TA = 25 C and VCC = +9V.)

Item Symbol Min. Typical Max. Unit
Voltage VCC 8 9 12 V
Working current IC 0.5 1.2 A
Working Frequency FREQ 840 860~868/902~928 960 MHz
Dimension L x W x H 420x300x24 mm


· Complete independent intellectual property design;

· Design based on Impinj R2000 read/write engine;

·  Supports electronic tags that comply with EPC CLASS1 G2, ISO18000-6C/6B Protocol;

·  Broad-spectrum frequency hopping (FHSS) or fixed frequency transmission;

·  Output power is up to 30dBm (adjustable);

·  Low power design, single +9V power supply;

·  Support USB (Slave), RS232, RJ45 (TCP/IP) and other communication interfaces;

·  Free Software Development Kit (SDK).