each hotel should set its emergency card , total control card, building card, floor card, group card , guests card.     When you are on trip , you would like to choose live in a hotel which is safety and convenience .With INV intelligent card locks hotels can supply...

smart lock program. each hotel should set its emergency card , total control card, building card, floor card, group card , gues      our lock program and sofware is so nice and with a lot of function ,it will help you a lot foe manage the hotel lock . USB interface...