1、Support Multiple Data: Support 2100 user access control cards, user data can be transferred. 2、Multiple Access Modes: Support access control card, multiple password opening methods. 3、Support Wiegand Reading Head: Any reading head with a Wiegand output signal of 26~37 bits can be connected. 4、Support Keyboard Reading Head: It can be connected to any 4‑bit, 8‑bit (ASCII), 10‑bit virtual codes output keyboard reading head. 5、Support for Card Addition: support for setting the main card and support for motherboard assembly. 1 x Access Controller2 x Access Control Card1 x User Manual 2 x Screw2 x Expansion Tube2 x Diode1 x Screwdriver Item Type: Double Door Access ControllerMaterial: ABSModel: Sboard-IIUses: Residential Quarters, Office Buildings, SchoolsBattery: 3V 1 x CR2025 80mah (Built in Battery in the Remote Control)Working Voltage: DC12VUser Capacity: 2100Relay: 2Adjustable Door Opening Time: 1-99 Seconds (Default 5 Seconds)Wiegand Interface: Input Wiegand 26~37 Bits, Output Wiegand 26~37 BitsWorking Environment: IndoorWorking Temperature: -40℃~60℃Working Humidity: 0~99%RH