Knowsight System Co., Ltd. Apps

Walnut smart lock is very easy to useandsecure. Users only need to scan the provided QR code, andthentheir smart phones become the keys to locks. As long as usersgetclose to the door with their phones and press the door bellbutton,the lock will be unlocked. It is so convenient that usersdon'tneed to take out their mobile phones. In addition, users canquerythe locks for the unlocking history to know who enter thehouse andwhen. Users can also share e-keys with friends so thattheirfriends can get in without trouble. The battery can last aslong astwo years, so users do not have to change frequently.Morefunctions are welcome to experience.