New Product: GROW GM802 Serial Small DC3.3V Barcode Scanner Module Board USB/TTL232 Interface 1D/2D QR Bar Code Reader PDF417 for Arduino

GM802 serial have GM802-S and GM802-L model.
The only difference between GM802-S and GM802-L is the lens.
GM802-S lens reading distance is 5-30cm.
GM802-L lens reading distance is 7-50cm.
(The actual data depends on the size and content of the code)
 
GM802 serial bar code reader module is a high performance scanner, can read 1D bar code easily and read 2D bar code with high speed. It also wins high scan speed for linear code, even for bar code on paper or screen.
GM802 serial bar code reader module is an advanced bar code decoding algorithm which developed on image recognition algorithm, can easily and accurately read bar code, simplify secondary development.

GM802 mainly parameter:
·Decoding  Ability: 
 1D: EAN-13, EAN-8, UPC-A, UPC-EISSN, ISBN, CodaBar,Code 128,Code93, ITF-14, ITF-6, Interleaved 2 of 5,Industrial2of5,Matrix2of5, Code 39,Code11, MSI-Plessey,GS1 Composite, GS1-Databar (RSS)
 2D: QRCode, DataMatrix, PDF417
·Operating Voltage: DC 3.3V
·Operating Current: 70mA
·Interface: TTL-232,USB 
·Dimension: 18*12.5mm
·Accuracy of reading: 10mil

More details pls click here: 
http://en.hzgrow.com/product/189.html