CX-91 Series 600 lbs. & 1200 lbs. Single Door Surface and Mortise Mount Magnetic Locks offer the best performance and value. A built-in 'TLS' option provides an adjustable timer, lock sensor, relay and LED. TDS option includes door status switch as well. Camden's Magnetic Locks are easily installed. A metal mounting template is packaged with the unit. Vandal resistant construction is built to last - lifetime warranty!