CMXZDCG440 Wireless Garage Door Opener Keypad The CMXZDCG440 wireless keypad offers a secure, convenient way to operate your garage door without using a remote control or key. Simply enter your 4digit PIN to open and close your garage, making access easier for you and your family. Key Features: 4digit PIN access for enhanced security and convenience. Compatible replacement for multiple models, including 977LM, 976LM, 90D, 956D, 377LM, 376LM, 940D, 66LM, 8500W, G940EVP2, Craftsman 139.3050, 139.53754, 139.5375401, 139.18795, 139.53684P, 139.53876, 139.53985D, 139.53919, and 139.53684. Works with Linear LD033, LD050, LS050, LC075, LDCO800, LSO50, and LSO502T garage door openers. Compatible with Linear Mega Code receivers including MDR, MDRU, MDR2, MDRG, MDRM, MGR, MGR2, and SMDRG. Replacement for Linear Megacode LPWKP/MDTK 318MHz keypad. Not compatible with dip switch garage door openers. Backlit keypad for easy operation in lowlight or nighttime conditions. Waterproof flip cover protects the keypad from moisture and weather damage. Ability to set temporary PIN codes for onetime visitor access. Practical Applications: 1. Daily Home Use: Easily open your garage without carrying a remote or fumbling with keys. 2. Guest Access: Assign a temporary PIN for friends, family, or service providers to use as needed, then disable it afterwards for security. 3. Nighttime Operation: The builtin backlight ensures you can clearly see the keypad even in lowlight conditions, while the waterproof cover protects against rain and snow. Specifications: Model: CMXZDCG440 Wireless operation with secure PIN entry Durable, weatherresistant construction with flip cover protection Designed for compatibility with a wide range of Craftsman and Linear models as listed above Quick, straightforward installation and setup With the CMXZDCG440 wireless keypad, you gain reliable, secure, and convenient control over your garage door, offering flexible access options and protection against weather and unauthorized entry.