This is a fixed and roling frequency remote cloner (433.92mhz) for copying common fixed and learning code remote controls. Compatible with Most Chips: these 433Mhz automatic sliding gate opener are compatible with 2264, 2260,1527, FP527, 2240, SMC918, and so on; Please confirm your chips whether suitable before ordering Easy to Duplicate: after removing the old code, you need to put the universal gate controller, remote control side by side, and press a button, then press the corresponding button to copy the old remote control, LED indicator will flash 3 times to let go, and other corresponding keys Clear the Old Code: press and hold the A and B keys on the automatic electric door opener at the same time until the LED indicator flashes continuously before releasing; You can press any key to test, if the LED indicator flashes instead of blinking all the time, it means the code has been cleared Portable and Convenient: : There are 4 buttons each of the remote control key fobs, which can help you control the devices precisely. Simple Pairing:The control key fobs have simple pairing with the remote original .The garage door remote control is made of high quality plastic with good hardness and durability; Due to compact and sturdy structures, radio emitters are easily stored in pockets, key chains or in the car, and small occupied space