1.2 inch thermal printer with black mark sensor 2.easy paper load 3.RS232,IR,Bluetooth,USB port. 4.Barcode/bit image print 58mm ... Print speed50~70mm/sLife cycle time50km(printing density under 12.5%)/100 million pulsestext and graphic SupportEnglish, figure, symbol, Chinese ... 20%~85%Storage SettingTemperature -20°C~70°C ; Humidity 5%~95%Standard accessoriesLong-term preservable paper, AC adapter, li- ...