Usage Tips:High performance decoding chip, can read 1D and 2D codes, but also can sweep WeChat, Alipay and other payment barcodes. Using CMOS image scanning technology, it can scan paper code and screen code, high-performance decoding chip, no fear of incomplete and fuzzy bar code. Decode Type: 1D(CODE 128, -13, -8, CODE39, UPC-A, UPC-E, CODABAR, INTERLEAVED 2 OF 5, , CODE 93, UCC/-128, GS1 DATABAR, Etc); 2D(CODE 128, -13, -8, CODE39, UPC-A, UPC-E, CODABAR, INTERLEAVED 2 OF 5, , CODE 93, UCC/-128, GS1 DATABAR, Etc) Made of high quality material, the scanner is and not easy to damage. The scanner module can be applied in various occasions such as elevator, community visitors' entry and exit management and son on. Perfect upgrade of traditional card swiping system for various industries. Optical Resolution:640x480 CMOS Scanning Mode:Inductive Reading Scanning Accuracy: equal 4mil Maximum Current:230mA Working Temperature:0-50 Storage Temperature:-40-60 Working Humidity:Relative humidity 5%-95% (no condensation) Colour:White Material:ABS Package Contents: 1 x Embedded Barcode Scanner Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.