B&D Diamond transmitters are SMALL and LIGHT key-ring size ones. The Four button can offer you the use for different functions.
Suit models: Control A Door P,
SDO-3V1 CADS etc
The four buttons means you can control up to four garage doors or gates, or use some of them for additional functions offered by Control-A-Door opener such as Pet Mode, Vacation Mode etc.
This remote control has an unique diamond shape button design, stylish while small and light. A key ring at the bottom right makes it easy to carry around.
It is also suitable for roller door opener RDO-1V2 PD, RDO-2V1EL, RDO-2V2EL.B&D model : SDO-3V2 CADS etc.