Replacement garage door remote control compatible with model MAHS40-04, works with Dickert garage door openers

40.685 MHz remote control only with programming switch: Ensure your remote control has a 40.685 MHz frequency and is equipped with an internal programming switch. Not compatible with remote controls without a programming switch. Friendly reminder: This garage door remote control is more of a replacement than an original accessory. We recommend you refer to the list below for device compatibility before purchasing. Compatibility list: Operating at 40.685 MHz, our remote control transmitter is compatible with Dickert MAHS40-04, MAHS40-01, AHS40-01, AHS40-02, AHS40-03, and AHS40-04. Lightweight and portable: With its small design and convenient opening at the bottom, this remote control is ideal for attaching to your keychain. Package contents: The package includes one garage door remote control, a metal keychain, and a user manual (English not guaranteed).