With the EntryGuard™ AC-SF3, FaceKey™ access control is easier and more secure than ever. The AC-SF3 can be programmed to open a door with a fingerprint only or with up to 15 methods to enhance the level of security. The AC-SF3 supports onboard Generic (EM) or Mifare card readers. Other functions are: Wiegand input, Wiegand output, anti-passback and a virtual keypad.