Feature: 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. Wiegand read head support: Any read head with 26-37 bit Wiegand output signal can be connected. 4. Keyboard read head support: It can be connected to any 4-bit, 8-bit (ASCII) and 10-bit virtual code output keyboard read head. 5. Support adding board: support main board configuration and support motherboard assembly. Specification: Item Type: Double Door Access Controller Material: ABS Model: Sboard-II Uses: Residential districts, office buildings, schools Battery: 3V 1 x CR2025 80mah (built-in battery in remote control) Operation Voltage: DC12V User capacity: 2100 Relays: 2 Adjustable door opening time: 1-99 seconds (default 5 seconds) Wiegand interface: 26~37 bit Wiegand input, 26~37 bit Wiegand output Working environment: Indoor Working temperature: -40~60 Working Humidity: 0~99%RH Package List: 1 x Access Controller 2 x Access Control Card 1 x User Manual 2 x Screws 2 x Expansion Tube 2 x Diode 1 x Screwdriver