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