Voltage: DC 8~15V (standard 12V); Electric current: when not drive lock, =70mA; Tempureture: -10~70'C; Frequency: 125KHz (EM card) (support ID card); Quantity of cards: 500pcs, at most 3, 000pcs; Recognition mode: Swiping card / Password / Swiping card + password; Directly external standard WG26 reader; Can set management password to add or delete cards