... Range: 5~15CM 3. DC5~16V Current =<100mA NK-RF120 Waterproof Promixity Mifare Card Reader for Door Access 1. Color: Black / White 2. Voltage: DC5~16V Current ≤100mA ... as Access control System, Access Control Board, Electromagnetic Lock, Electric Bolt Lock, Electric Control Lock, Electric Strike, Time Attendance and Biometrics, etc. Waterproof Promixity Mifare Card Reader for Door Access