Specification Physical parameters Dimensions 16.64 cm (H) x 7.16 cm (W) x 11.99 cm (thick) Weight (not including communication lines) 181.4 g Voltage 5 V + / - 10% Current of 250 mA (average) Power as the host may be: Host power or external power Color similar to the cash registers of white or light black Performance parameters Light Source 650 nm visible laser diode 640 x 480 resolution Minimum strip width is 5 mil (0.127 mm) 100% of rated distance for the UPC / EAN symbols, between 1 in (2.5 cm) and 14 in. (35 cm) between Print Contrast 25% minimum reflectance difference Rotation angle + / - 180 degrees (through the wrist clockwise or counterclockwise rotation control) Tilt angle + / - 60 degrees (by lowering or raising the wrist control) Offset angle + / - 50 degrees (from left to right or right to left by rotating the wrist to control) Ability to decode one-dimensional: UPC / EAN, with the added code UPC / EAN, UCC.EAN 128, JAN 8 & 13, Code 39, Code 39, Full ASCII, Code 39 Trioptic, Code 128, Code 128 Full ASCII, Codabar (NW7), Interleaved 2 of 5, Discrete 2 of 5, Code 93, MSI, Code 11, Code 32, Bookland EAN, IATA, UCC / EAN RSS and RSS Two-dimensional: PDF417, microPDF417, MaxiCode, DataMatrix (ECC 2000), Composite Codes, and QR Code Postcode US Postnet, US Planet, UK Postal, Japan Postal, Australian Postal and Dutch Postal Support interface, RS232, Keyboard Wedge, Wand Emulation, Scanner Emulation, IBM 468X/469X, USB and Synapse Environmental parameters Operating Temperature 32 ℉ to 122 ℉ (0 ℃ to 50 ℃) Storage temperature -40 ℉ to 158 ℉ (-40 ℃ to 70 ℃) Humidity Relative humidity 5% to 95% (no condensation) Ability to withstand seismic from 6 feet / 1.8 meters high and several times fell to the concrete floor can work No interference with ambient light in the normal office and factory lighting conditions, or direct exposure to the sun will not have any impact on their Sunlight 10,000 ft. Candles/107, 644 LUX Line 15 kV ESD 8 kV air discharge and contact discharge requirements Mandatory Electrical safety compliance UL1950, CSA C22.2 No.950, EN60950/IEC950 requirements Laser Safety CDRH Class II, IEC Class 2 EMI / RFI FCC Part 15 Class B, ICES-003 Class B, European Union EMC Directive, Australian SMA MOQ： 1PC　 　 Payment: T/T, Western Union or Paypal (for paypal, need extra 5% of total amount) Delivery: around 2~3 days upon receipt of payment