Note: If the LED on your old remote control is green or yellow, it is not compatible. Access to the receiver required. Please make sure you have access to your receiver/gate opener before purchasing. The handheld transmitter impresses on the one hand with its compact and handy design and on the other hand with its easy commissioning and operation. With four channels, you can learn and control up to four different Sommer drives. This is a robust and high-quality replacement that includes a protective sliding key cover. This remote control pairs with your Sommer receiver, just like the old one. : for SOMMER 4020 TX03-868-4. for SOMMER 4026 TX03-868-2. for APERTO 4021 for APERTO 4025 for SOMMER 4011 for SOMMER 4025 for SOMMER 4031 for SOMMER 4035 for SOMMER 4025 BLUE for SOMMER 4026 TX03-868-2 for SOMMER 4020 TX03-868-4 4011V000 4020V000 4025V000 4026V000 4031V000 4035V002 IMPORTANT!!! Not compatible with Sommer 868 MHz SOMloq2 (Pearl, Pearl Twin, Pearl handheld transmitters) Not