... device in machineCan add several continuous cardWaterproof degree: IP681Perfect design, keypad with light, plated sliver color, popular and fashion.2. Output ... in machineCan add several continuous cardWaterproof degree: IP68 1Perfect design, keypad with light, plated sliver color, popular and fashion.2. Output ... : code, card +code 6. Reading-card distance: 5-15cm digital metal access control keypad