... Speed of code reading:100time/sec 3.Trigger and auto scan 4.RS232, PS/2 Keyboard and USB ... usb reader with trigger and auto scan Feature:Novel in design, light and flexible, ... : Type of lamp house650nm laserManner of usingTrigger and auto scanRate of wrong code1/1,000,000Security capabilityIn compliance ... mmMaterialABS+TEWeight110g usb reader with trigger and auto scan