Security Password Door Digital Locks

We are offering security password door digital locks. name: security password door digital locks type: mr28mg-cs port: any port in china low battery warning emergency key entry name: security password door digital locks product type:mr28mg-cs features: random button password security feature. security mode with password or card. low battery warning. keypad back light. maximum 38 id cards memory. 9v battery emergency back up. emergency key entry.