... 3.Zinc alloy+ABS 4.Durable,convenient and safe Item: digital electronic lock1.Operation :Input password to operate2.Size :Lock ... power < 4.7VMemory capacity4160 BitWork temperature-15°C ~ 65°CWork humidity 5%~95%RH(No condensation)Anti-static electricity Air discharge ... quality RF card hotel door lock,RF card locker lock,Digital locker lock,Energy savingswitch,Doorbell switch,Touch screen light switch ...