... direction. Working voltage: AC220V 50HZ input, DC24V(2000mA) direct current safe voltage drive input interface: 12V level signal or pulse ... width >100ms 12v pulse signal, drive current>200mA support different kinds of signal input. passing speed: ... 2mm 3 Reliable performance, rejecting personal interference, add over current protection, prolong the life time. 4 Connect with fingerprint, ...