This is a fixed and moving frequency remote cloner (433.92 MHz) to copy 99.99% of common fixed and learning code remote controls. Compatible with most chips: automatic sliding gate openers433 MHz are compatible with 2264, 2260,1527, FP527, 2240, SMC918, etc. Easy to duplicate: After removing the old code, you need to put the universal gate controller, remote control side by side, and press one button, then press the corresponding button to copy the old remote control, LED indicatorwill flash.3 times to let go, and other corresponding keys Clear old code: Press and hold the A and B keys of the automatic electric door opener simultaneously until the LED light flashes continuously; You can press any key to test, if the lightLED flashes instead of flashing all the time, this means the code has been cleared 4 keys control: there are 4 buttons on remote controls for gates, A, B, C, D, which are used to open, close and stop doors, which is convenient and practical You can use for roller shutter doors, roller shutter doors, telescopic doors, garage doors, road doors. You will get: there are 4 pieces of universal remote door openers (with battery and instruction manual), equippedwith a lobster clasp, which can be attached to clothing, etc.