... with built-in back-up battery, C1 controller is optional IN03 is an innovative biometric fingerprint reader for time attendance applications, built-in ... several seconds.Features:Color TFT screen with GUI interface for ease of useOptical ... user ID, Scheduled-bell, SMSOptional Functions: C1 Controller, ID/Mifare/HID, Photo ID, Printer, 14 ... kg fingerprint time attendance with built-in back-up battery