3 Styles for Normstahl / Crawford 433 Garage Gate Door Remote Control Rolling Code Feature: 1) Compatible with: Crawford garage door opener. 2) Number of channels: 4 / 2 3) Frequency: 433.92MHz 4) Battery: 12V 27A / CR2032 5) This is a third-party remote control. NOT made by Crawford. Compatible Models: Normstahl / Crawford EA433 2KS Normstahl / Crawford EA433 4KS Normstahl / Crawford RCU433-2 Normstahl / Crawford RCU433-4 Normstahl / Crawford N002800 Normstahl / Crawford EA433 2KM Micro Normstahl / Crawford T433-4 Transmit distance: 25-50m in open space. Open space means no interference. No walls, doors, trees, or other obstructions. Interference from garage doors or brick walls may significantly reduce range. New Remote Programming: 1) Open the Courtesy Lamp Cover to expose the "Learn" or "Code SET" button. On some models, it is located on the rear of the motor head. 2) Press the "Learn" button (*LED indicator will glow solid). 3) Press the remote button you wish to assign to the door—LED indicator will turn off. 4) Press the same remote button again—LED indicator will flash rapidly. Programming is complete when the flashing stops. 5) Close the Courtesy Lamp Cover. Includes: Remote Control Battery Keychain English Manual Professional certificate, quality assurance