Electric Drop Bolt Lock Deadbolt Fail-Secure NO Mode 12V DC Manual Open Cylinder with Mechanical Key for Door Access Control

This Drop Bolt Lock is used for door access; Fail secure - Locked when power is removed. It supports to unlock the lock by Mechanical Key. | This Deadbolt is made from durable and high quality aluminum lock body and stainless steel bolt, durable for use. | Solid Bolt Holding Force: 1000Kg / 2220lb. | Auto lock Time Delay: 0/3/6/9 sec for choice; Door status signal output contact: NO/COM. | Suitable For: Wooden Door, Metal Door, PVC door.