... system 1.Electronic lock character1,Suitable for hotel ,apartment,office,residential door;2,Door thickness requirement is 38mm to 60mm ... American standard mortise,deadbolt function,high security;7,Door openning in 1-2 seconds when the RF ... less;9,Match a set of mechanical key for emergency,the lock hole was maked hidden below ... product5 package6 factory7 welcome to locstar keyless door locks for hotel