Features: Sensitively & response quickly. Build in RFID reader, contactless RFID transponder technology. Support Card, PIN, Card + PIN. Connection for external release button (Exit button). Support 500 standard users. Does not need to connect on the computer, it can works alone.AC110V-240V power supply provides stable output voltage for access controller, lock, & exit button. It controls electric lock directly. Help to reduce overload for access controller. Automatic protection function for unexpected short circuit or power off. Collinear load test of magnetic locking is 180kg (396 Lbs).MOV provides reverse current protection. Anti-residual magnetism designed. High strength material, anodized aluminum housing. With NO & NC. Comes with remote control for convenient use. Ideal for security doors, building entrance / exits.