... touch screen *Special Dual camera *Read face,fingerprint 3D Facial Recognition Time and Attendance HF-FR302 Introduction: ... communicationBuilt-in contacts for 3rd party electric lock, door sensor, alarm, exit button, or bell.Wiegand Output ... ID, DLSTAccess control interfaces for3rd party electric lock, door sensor, exit buttonWiegand SignalOutputOptional functionsserial printer, Mifare card, Extendable ...