how do qr codes work

Brand Name:Luckydoor

Model Number:K-60

Place of Origin:Made in China

... Library Product Description: K-60 is wireless bluetooth barcode scanner equipped with high-capacity rechargeable battery, it can work continuously for 6 hours after 2.5 hours of full charge, 100-days super long standby time. In order to save power, the

Brand Name:RAKINDA

Model Number:RD4100

Place of Origin:Shenzhen, Guangdong, China

... and swift scanning. The 2d barcode scanner module scans the code with white light source that can't hurt your eyes even if protect your eyes from strong light. Our company has the patent of RD4100 appearance, it can put on the desktop directly because of

Brand Name:Effon

Model Number:MSJ45

Place of Origin:China

... set. 3. With Bluetooth function, it can work with phone, iPad and computer. (Your device need support Bluetooth connection) 4. Light weight, more portable to taking. 5. Built-in 2500mAh battery, can continue work for you up to 7.5hours but only need 1

Brand Name:Laipson

Model Number:W-GF301-B

Place of Origin:China

...QR Code SHEEP EAR TAG PARAMETERS Name Wholesale TPU Visual Ear Tag For Ewe Goat Sheeep Printing QR Code Model GF301-B Prduct Material Polyether TPU Size 55*19mm Using Sheep,goat,cattle,cow Colors Blue,red,orange,yellow Feature The Laser or Pen Marking not to fade For sheep farm tracking Print 1. Laser printing 2. Customer's logo, 3. QR,code Working...

Brand Name:trohestar

Model Number:N3 2D Bluetooth

Place of Origin:China

...Qr Code Reader 1200mah Large Mempry Battery Work With Windows, Mac,Android, IOS Phones, Tablets Or Computers Bluetooth Version Bluetooth 4.2 Scan speed 300 Scans/sec Type qr code reader Compatible Barcode Type UPC, EAN, Code128, Code39, Code93, Code11, Interleaved 2 of 5, Matrix 2 of 5, Industrial 2 of 5, Standard 2 of 5,MSI, GS1, Codabar, 2D barcode,like QR code...

Brand Name:TIMMY

Model Number:Q3

Place of Origin:China

...QR Code Scanner Features: 1. Tempered glass material with quality front design 2. CNC Metal Metrial Case Design. 3. Fast QR Code scanning no matter whether it is under dark light, or for paper qr code reading. 4. Wiegand/ USB Communication RFID card reader Wiegand 26/34 QR Code Scanner Specifications: Card Type: EM Card/IC Card Barcode Type: QR, One-dimensional code Communication: Wiegand/USB/RS232/RS485 Working

Brand Name:CYCJET

Model Number:Smart II-L

Place of Origin:Shanghai, China

...QR Code Printing Description of Thermal Inkjet Printer: Unique code like QR code or DataMatrix code is very popular in all kinds of industries nowadays. CYCJET Smart II online thermal inkjet printer can work with different production lines to read data from the anti-faking system automatically, then make the QR code...

Brand Name:GOLDANTELL

Model Number:GAT-M7003

Place of Origin:SHENZHEN CITY, CHINA

... 1. Working Mode_ It widely works together with Pedestrian TURNSTILE gates, or directly work separately, so support different installation. Such as wall-mounted, desktop, floor-mounted installation. 2. Application Place_ suitable for office areas,

Brand Name:YHDAA

Model Number:YHD-M803D

...QR Barcode Scanner Engine Embedded Module YHD-M803D 3 kinds of output interfaces, TTL/RS232/USB. Meet more interface requirements.Configurable via scanning 'configuration code',Module matching light source, Can work in the dark.2D/QR code scanning module use CMOS Optical Imaging Scanning Technology: Which can identify screen code, incomplete code and fuzzy code...

Brand Name:WEJOIN

Model Number:Q2

Place of Origin:Shenzhen, China

...Qr Code Bar Code RFID Reader Tripod Turnstile Specifications: Model Q2 Material of Housing 304 Stainless Steel Dimension of Housing (L×W×H mm) 1200×280×990 Length of Pole (out of housing) 490mm Net Weight 70kg Max Load-bearing of Pole 60kg Rotating Direction Double Direction Frequency 50/60HZ Working Voltage of Motor DC12V Rated Power 50W Transit Speed 30~40 persons/min Working

Brand Name:Kebo

Model Number:SK-5000

Place of Origin:China

..., GS1-DataBar, Code128,GS1-128,UPC-A,UPC-E0,EAN/JAN-13,EAN/JAN-8,Code32 2D:QR code,Data Matrix,PDF417,Aztec Code transmission mode connecting transmission distance 10-30m Working mode Normal,Inventory mode,

Place of Origin:China

...Code Type 2D QR Code, Data Matrix, PDF417,maxicode,Aztec,hanxin 1D EAN,UPC,Code 39,Code 93,Code 128,UCC/EAN 128, Code 11, Codabar, Interleaved 2 of 5, Standard 25,MSI-Plessey GS1 Databar, Industrial 25, Matrix 2 of 5 Accuracy of reading One Dimensional Code:6mil Working...

Brand Name:LKS

Model Number:LKS89927

... Contrast: 1000:1 Hotel: Hotel Reception Kiosk Issuing Speed: 7 Seconds / Card Power: AC Adapter Scanning: Barcode/QR Code/ID/Passport Touch Screen: Capacitive 10 Points Touch Screen Working Temperature: -10℃ To 45℃ Operate

Brand Name:Wisecard

Model Number:barcode scanner

Place of Origin:China

...QR Code Scanner 2022 New Design Desktop Barcode Scanner China Manufacturer OEM ODM Description Of Desktop Scanner * Compatible System - Windows, Mac OS, POS Cash Register, Linux. * Desktop Hand-Free design free your hand and improve the working efficiency. * Plug and play, no need for any driver or software. Easy installation with USB cable. * Extra large scanning angle, identify screen code, incomplete code and fuzzy code...

Brand Name:Turboo Euro

Model Number:EU242

Place of Origin:Guangdong, China

QR Code Speedy Wing Gate Turnstile 550mm Two Way Channel Passing​ Speedy Wing Gate With Two Way Channel Passing Through IC/ID Card /QR Code Quick Details Passage width ≤550mm Throughput rate 35p/m Power supply 100-240V/(ac) Operational voltage 24VI(dc) Max power consumption 20W Frequency 50-60hz Prectection level >44IP Working...

Brand Name:TS

Model Number:TS-ZZ011

Place of Origin:China

... standard 550mm, max 1100mm Passing Speed 35-40 personal/min Opening Speed Adjustable, fastest 0.3s Working Temperature -25℃-+70℃

Brand Name:Hangte

Place of Origin:Shenzhen

...QR code hologram sticker labels with faster delivery Name Hot selling serial number QR code hologram sticker labels with faster delivery Shape Roll Proofing charge Most labels don't need proofing charge,packaging boxes have. useage Can used in gift pacakge, Candy package , Chocolate package,etc Payment Term T/T payment 30% deposit,70% balance before shipment Sample time 5-7 working...

Brand Name:YJFIRST

Model Number:YJ-6601(USB+BT +2.4G Wireless 2D)

Place of Origin:Guangdong, China

Mini Bar Code Reader 2D QR Code Pocket Scanner Wireless Blue Tooth Barcode Scanner feature 1.High Quality ScanningHead Works Efficientlycompatible windows 7, windows 8, windows xp.windows vista,MAc,android, los,And other systems. 2.2D Bluetooth barcode ...

Brand Name:Yukang

Model Number:YK-F001

Place of Origin:China

.... 2. Compared with YAG laser or diode laser, it has a much higherphotoelectric conversion efficiency. The efficiency of optic-electrical converting is up to 30%. 3. Long-span working life: its working life is

Brand Name:KingKong Metal

Model Number:KK-G211116

Place of Origin:China

QR Code Gold Brass Black Printing Brushed Metal Membership Card Material Stainless Steel, Brass Size(L*W*) According to customer needs, Normally 85*54mm Color CMYK litho printing, Pantone color printing, Flexo printing and UV printing as your request Finish Processing Glossy/Matt/Varnish/Spot UV/Frosted/Mirror/Brushed/Plated Colors Samples Fee Stock samples are free Lead Time 7-11 working days for samples; 9-15 working...