Compatibility: The garage door keypad JP-MAX compatible with Chamberlain, Liftmaster, Craftsman garage door openers manufactured after 1993 with Purple/Red/Orange/Green/Yellow color learn buttons. Not work with DIP Switch type opener. Not work with Craftsman Series 100 Secure Keyless Entry: Compatible with 315MHz or 390MHz or 310/315/390MHz garage door openers. Universal replacement 877max 878max 940EV 940EVC etc Keypad Opener. Enter your garage door without needing to carry a key with the wireless keyless entry keypad. Only need to enter your personal 4-digit PIN code to gain security access entry 3 Channels: The wireless garage door keypad has 3 channels which allows to control up to 3 garage doors independently.Able to control 3 different garage doors with one keypad. You can set each channel with different PIN code individually for different access Special Design: Our garage door Keypad includes sliding cover to protect keypad from weather conditions, and a backlit keypad illuminates the buttons. Also come with a durable 9V battery, will let you no longer have to worry about frequent battery replacement Easy Programming & Use: Easily programmed to most major brands Garage Door Openers with just a few button pushes. If you make a mistake while programming or entering PIN code and can not perform any operations, you can reset the keypad The garage door keypad JP-MAX works with Chamberlain, Liftmaster, Craftsman garage door openers, with Purple/Red/Orange/Green/Yellow color learn buttons. Not support DIP Switch.