SOMMER 4011 4021 4025 TX02-868-2 4035 4031 4026 TX03-868-2 Garage Door Remote Control 868MHz Gate Opener Specification Model: SOMMER Material: Metal and ABS Buttons: 4 Buttons Frequency: 868MHz Code: Rolling Code Battery: CR2032 (Included) Type of Programming: Programming with the Receiver Compatible Models APERTO 4021 APERTO 4025 SOMMER 4011 SOMMER 4025 SOMMER 4031 SOMMER 4035 SOMMER 4025 BLUE SOMMER 4026 TX03-868-2 SOMMER 4020 TX03-868-4 How to Program 1. Locate the programming button on the receiver unit. 2. Press and release the programming button. 3. Within 30 seconds, press and hold the desired button on the remote until the indicator light on the receiver flashes. 4. Release the button. The remote is now programmed.