Genie 2 Button Keychain Garage Door Opener Remote Lumber and Composites Q: Are these suitable for 100051140 Q: Are these suitable for heavy duty applications Durable Construction: Zinc build with a resilient matte black finish for everyday use in humid baths Safety and security when you are on the move equipped with Intellicode rolling code technology that prevents unauthorized persons from opening your garage door by automatically changing the access code every time you use it Easily programs up to 2 Genie Intellicode garage door openers Strong secure dual frequency signals minimize interference and improve performance Includes a powerful flashlight that puts off greater than 20 lumens of light Genie genuine accessories and parts for guaranteed performance Includes lanyard AAA battery and easy to program instructions