The Alarm Controls 600DLB is a double door maglock with a 600 pound minimum holding force. The lock is coated in a clear anodized aluminum finish and all non-aluminum metal parts are plated for added durability and protection. The lock is equipped with a bond sensor, door status sensor and LED. Also known as -Alarm Controls Corp. 600LB DBL LOCK W/ LED BOND SENS - AC-600DLB