... TAIYITO TDX4488 Fingerprint Door Lock smart lockIt can fixed with burglarproof door, wooden door, office door etc, have four ... RH Installation:Compatible with various type of the door, very easy and convenient for you to ... install it on the new door or old one, suitable for home, office, ... this very moment, just make a call, the door will be open.Checking working statues: even you ...