This is a fixed and rolling frequency remote cloner (433.92 MHz) for copying most common fixed-code and learning-code remote controls. Compatible with Most Chips: These 433 MHz automatic sliding gate openers are compatible with chips including PT2264, PT2260, EV1527, FP527, PT2240, SMC918, and others. Please verify chip compatibility before ordering. Easy to Duplicate: After clearing the old code, place the universal gate controller and remote control side by side. Press and hold a button on the remote, then press the corresponding button on the new remote. The LED indicator will flash three times, indicating successful copying. Clear the Old Code: Press and hold buttons A and B simultaneously until the LED indicator flashes continuously, then release. Press any key to test — if the LED flashes briefly (not continuously), the code has been cleared. 4-Key Control: Four buttons (A, B, C, D) allow control of gate functions including opening, closing, and stopping. Suitable for rolling shutter doors, telescopic doors, garage doors, and similar applications. Color: As shown in photo Material: Metal Package Contents: - 4 x garage door opener remotes (batteries included) - 1 x English instruction manual Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.