WIDE COMPATIBILITY: This wireless garage door keypad is compatible with for , for , for , and for garage door openers with yellow red orange green learn buttons from 1993 to present. Does not work with 200.57933 57943 57953 Series 100 CR1150 139.57943 139.57953 KEYLESS GARAGE ENTRY: This garage door opener key pad is a secure keyless entry system that opens or closes your garage door without the use of a remote or key. The wireless keyless entry system opens your garage door using a 4-digit private code that you program directly into the device. Replacement 877MAX G940EV-P2 878MAX 377LM 977LM 877LM 66LM CMXZDCG440 EASY TO INSTALL AND USE: The keyless entry system offers wireless installation and wireless programming. A rain cover is included. Large backlit buttons on the keypad provide quick and easy access. Offers a one-touch closing feature that makes closing the garage door easier than ever SECURE AND RELIABLE: This garage door keypad features the latest Security+ 2.0 rolling code technology that easily synchronizes with existing door opener frequencies to radio wave interference. Rigorously tested using test equipment. This keypad has 3 channels for 3 door openers, so you can control up to 3 motor units with just one keypad. Temporary Password: Can be provided to maintenance personnel, meter , house sitters, etc. while you are away without revealing your family's private entrance code. Note: The Close' is only efective within 15s after entering the password, and can be set to 30s by refering to the instruction manual Color: Black Material: plastic Package Contents: 1 * Garage Door Keyboard 1 * English Manual 1 set * Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.