100% compatible
                        HENDERSON 4020
                        compatible with
                        SOMMER 4020 TX03-868-4
Reference : :

| Brand | HENDERSON | 
| Model | 4020 | 
| Frequency | 868.8 MHz
                        
                         | 
                
| Number of buttons | 4 | 
| Type of programming | Programming with the receiver | 
| Type of battery | CR2032 | 
| Dimensions | 8 x 1 x 2 cm | 
| Battery and instructions included | Yes | 
| This remote replaces | SOMMER 4011, HENDERSON 4020, LINDPOINTNER 4020, APERTO 4020 TX03-868-4, APERTO TX02-868-4 |