LiftMaster 811LM with Security+ 2.0 Technology Remote Control, Pack of 2 Description For commercial gate operators. NOT for residential garage systems. For use with 850LM receiver only, not for garage NOT FOR GARAGE Features: LiftMaster 811LM Commercial Gate Remote NOT FOR GARAGE OPENERS. Product is NOT Universal and NOT for garage systems. For Commercial Gates only Liftmaster 2.0 encrypted technology only Product Details: Brand: LiftMaster Special Feature: Ergonomic Color: Original version Max Number of Supported Devices: 1 Compatible Devices: Garage Door Manufacturer: ‎Liftmaster Part Number: ‎CECOMINOD032517 Item Weight: ‎4.4 ounces Package Dimensions: ‎5.15 x 2.78 x 2.3 inches Item model number: ‎811LM 2 Pack Batteries: ‎2 CR2 batteries required. Is Discontinued By Manufacturer: ‎No Size: ‎Original version Color: ‎Original version Style: ‎Modern Material: ‎plastic Item Package Quantity: ‎1 Special Features: ‎Ergonomic Batteries Included?: ‎No Batteries Required?: ‎No Battery Cell Type: ‎Lithium Description Pile: ‎Lithium Date First Available: December 7, 2015