... Digit User ID. Infra-red optical system enables user-identification in poorly lit environments.Optional Mifare card module Professional facial ... Version:ZKFace7.0 Communication:TCP/IP, USB Host Standard Functions ID card,Automatic Status Switch, Self-Service Query, Work Code ... , T9 input, 9 digit user ID, DLST,Scheduled-bell Power Supply:12V/1.5A Verification Speed ...