3 Styles for Normstahl / Crawford 433 Garage Door Remote Control – Rolling Code Features: 1) Compatible with Crawford garage door openers. 2) Number of channels: 4 or 2 3) Frequency: 433.92 MHz 4) Battery: 12V 27A or CR2032 5) This is a third-party remote control, not manufactured 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: 25–50 meters in open space (no walls, doors, trees, or other obstructions; interference may reduce range). New Remote Programming Instructions: 1) Open the courtesy lamp cover to access the “Learn” or “Code Set” button. If not visible there, check the rear of the motor head. 2) Press and hold the “Learn” button until the LED indicator glows solid. 3) Press the desired button on the remote — the LED will turn off. 4) Press the same remote button again — the LED will flash rapidly. Once flashing stops, programming is complete. 5) Close the courtesy lamp cover. Package Includes: Remote Control Battery Keychain English User Manual Professional certification and quality assurance provided.