Verify your existing opener's brand and frequency compatibility before purchase to secure optimal functionality of this specializes garage door remote control Ideal for homeowners or facility managers seeking a backup or replacement remote specifically tailored for garage door opener systems Crafted from strong with a compact keychain design, this lightweight garage door keychain remote ergonomic handling and long lasting for daily operate Designed as a direct replacement for 4020 TX03 868 4 868.8MHz SOMloq1 systems, this garage door remote ensures seamless compatibility with openers for stable access control activate your garage door from vehicles or entryways using this portable keychain transmitter, perfect for quick access during commutes or deliveries, Manufacturer: Pitadue