Product characteristic:The modular ties may with ease replace, provide compatible and the convenience product service.Customizing may carry on the design according to user's special request.The most distinct characteristic is high quality, low price Basic attribute: weight: 130 grams (do not contain electric cable line) the electric cable line: 2 meter sheathing materials: ABS revertex power source: +5VDC+_5% operating current: 120mA shock strength: 1 meter falls the pavement test connection: TTL, KB, RS-232, WAND, OCIA, USB Performance parameter Light sources : 660 wave length red LED optical systems: 2048 PIXEL CCD CPU processor: INTEL 8031 decoders: Innate design scanning speed: 33~100 times/Second resolution: ≤0.1mm(4mil) printing contrast gradient: ≥45% scanning distance: 0~15mm (popular type), 0~75mm (long distance) scans the width: ≤82mm may read the bar code: Code39, FullASCIICode39, UPC/EAN/FAN, CODEBAR, Interleaved 2/5, Code128, Code11, Code93, MSI/PLESSEY, Code4, and so on Environment request operating temperature: 0~50 storage temperature: -10~60 relative humidity 5%~95% periphery photosource 1500 Lux is suitable the attachment DB9, DB25, AMP, RJ-45, RJ-11, DIN5, DIN6, PS/2 and so on