Card and EM Lock-DR3
DR3 is a low cost solution for simple standalone budget application. During entry, user will just need to flash their card in front of the reader. Upon identity verification, the electromagnetic lock will release; allowing the door to be opened. During exit, users press the exit push button from the inside.
Green LED will blink with one beep sound to indicate successful reading. Red LED will blink with two beep sound to indicate invalid reading. Auto learning card enrollment by using master card, simple enrollment and no need programming. For future maintenance, it is recommended to keep the master card in a save place for future enrollment / delete card.