Harris Security Consultant Inc:Night lock Door Security
Nightlock® Lockdown 1 comes complete with easy instructions, Wall Storage Box, matching screws and plastic anchors for mounting on ceramic tile, marble or concrete floors.
NIGHTLOCK® Lockdown 1 can withstand tremendous force of 2,000lbs on a door that open into the room & 1,600lbs. of on doors that open out of the room. On a conventional door, an intruder or active shooter can break a door window, reach in, and gain access to the doorknob lever to open the door (even with security mesh wire). With the Nightlock Lockdown 1 at the floor level, it is out of reach.