The ACML-AQ600 mag lock offers up to 600 pounds of holding force. This is a Recessed Magnetic lock that installs embedded inside of the door frame so its flush with the frame. This is a great lock for interior doors or exterior doors that do not need a lot of holding force. This is a fail-safe MagLock, meaning it will open when there is no power which is ideal as a fire exit. This electromagnetic door lock works with both 12v DC and 24v AC. You wire this magnetic lock to one of our access control panels or an any of our AQSESS series standalone access control readers that accept relay outputs. The system notifies when the door both closes and opens.