Easylifter 27.45MHz Remote (CAD 603)

 Easylifter garage door opener 2 channel transmitter , Two large rectangular off white colour buttons first button has ridges throught, second button smooth finish Suit for B&D Controll-A-Door 4. CAD4 27.145MHz Instruction to set up.

Not sure which remote you require?
Easiest way is to look at the motor, if the aerial is short than you need a 433MHz CAD4 Keyring remote, if you have a long aerial around 2metres long (sometimes rolled up) you require this remote, which is 27.145 MHz.