Command Access MLRK1-MRK Motorized Latch-Retraction Kit

Field retrofit for Marks and Design Hardware exit devices

The Command Access MLRK1-MRK converts compatible Marks M9900, Design Hardware 1000 and GAAB G399 Series exit devices to motorized latch retraction. It is a retrofit kit for the exit device rail, not a complete exit device.

Product highlights

• Compatible with Marks M9900, Design Hardware 1000 and GAAB G399 Series devices
• Field-installable motorized latch retraction
• UL Listed
• Manufacturer's 3-year warranty

Ordering notes

REX availability can depend on the exact kit configuration; confirm the ordered part and included components. Exit device, power supply, power transfer, controller and field wiring are sold separately unless specifically stated.

Installation and life-safety notes

• Confirm the exact exit-device series, rail length, revision, handing and listing before installation.
• Use a regulated power supply and door-loop or electrified power transfer sized for the complete opening.
• A REX contact, when fitted, is for monitoring; it is not the sole means of unlocking or egress. Mechanical free egress must remain available.
• Follow the manufacturer instructions and applicable fire, building and accessibility codes. Installation by a qualified door-hardware or low-voltage professional is recommended.