... to operate 3.Zinc alloy+ABS 4.Durable,convenient and safe Item: digital electronic lock1.Operation :Input password to operate2.Size ... durable4.8 Can lock from 3 sides, it is very safe.5.Parameter: Materail Lock Panel-Zinc alloy; Lock body: ABSPassword ... system,Locking system We manufacture high quality RF card hotel door lock,RF card locker lock,Digital locker lock,Energy savingswitch,Doorbell ...