Scans smartphone displays! Mobile QR code/barcode scanner

  • Feature
  • Specifications
  • Option
  • Software

Feature 1

Perfect fit for scanning mobile QR codes and bar codes

Enables high-speed scanning of QR codes displayed on LCD screens.Excellent scanning performance for codes printed on paper, too.

* If protective lm is affixed to the LCD screen, code scanning performance may be affected.

Feature 2

Can scan codes displayed on large-screen smartphones

30% increase in scanning area from the previous model enables easier scanning.

*When scanning codes displayed on an LCD screen.

Feature 3

Compact design

More than 50% thickness reduction compared to the previous model further enhances mountability.

Feature 4

Stylish design

Sophisticated design suitable for use with smart devices.

*Sales availability varies by country and region. Please contact us for more information.

Supports rMQR code scanning

he new QR code 'rMQR Code', which enables printing in long, narrow spaces, can also be read. This expands the range of applications. (To read rMQR, update the firmware to the latest version.)

Type Stationary type Built-in type
Model QK30-U QK31-U QK31-R
Scanner Readable codes 2D code QR code, micro QR code, SQRC, rMQR code(1),  iQRcode, PDF417, microPDF417, DataMatrix, Aztec, GS1 Data Composite, MaxiCode
Barcode EAN-13/-8(JAN-13/-8), UPC-A/-E, UPC/EAN(with add-on), Interleaved 2 of 5(ITF), Standard 2 of 5(STF), CODABAR(NW-7), CODE39, CODE93, CODE128, GS1-128(EAN-128), GS1 DataBar(RSS)
Minimum resolution 2D code 0.25mm
Barcode 0.18mm
Scanning area 70mm×50mm
Focusing point 7mm(2)
Scan confirmation LED in three colors: Blue/Red/Green, speaker -
Communication interface Method USB 1.1-compliant(COM、HID)(3) RS-232C
Connector USB connector: type A(with an integrated cable) USB connector: type B(with a detachable cable) Mini-DIN connector(with a detachable cable)
Cable length 1.5m 1.4m(Sold separately) 1.5m(Sold separately)
Power Power Supply from host device(4)
Environmental performance Security level IPX2 -
Operating temperature -5~50°C
Operating humidity 10-90% RH (non-condensing/non-freezing)
Weight 250g(incl. cable weight) 170g(excl. cable weight)
  1. 1. Supported products number:496810-220X, 496810-221X, 496810-243X, 466500-664X, 466500-665X
  2. 2. Height from dust-proof plate
  3. 3. Two systems are supported: USB keyboard interface and USB-COM interface.When using in USB-COM interface mode, please download the USB driver from the DENSO WAVE website (free of charge).
  4. 4. Please check the connection beforehand because this type of connection may not be possible depending on the model of the PC or USB hub.

External dimensions



Type Model
Cable USB cable for QK31-U (1.4 m)
RS-232C cable for QK31-R (1.5 m)

Case and others

  Type Model
Silicon cover Silicon cover(Blue)
Silicon cover(Black)
Silicon cover(Clear)

Scanner configuration software

Type Model Feature
Scanner configuration software Scanner Setting 2D(Free) Software for configuring various parameters of the DENSO WAVE Handy Scanners


  • Feature
  • Specifications
  • Option
  • Software

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