General description This 4Pcs Universal Garage Door Remote Control Duplicator is a versatile and efficient solution for copying remote controls. It operates on a fixed and mobile frequency of 433.92MHz, allowing it to duplicate 99.99% of common fixed and learning code remote controls. This remote is compatible with various chips, making it suitable for a wide range of applications including roller shutter doors, garage doors, and automatic sliding gates. Technical specifications Frequency: 433.92MHz Compatible chips: 2264, 2260, 1527, FP527, 2240, SMC918 Dimensions: Measurement allowed error is +/- 1-3 cm Usage Easy to duplicate: Place the universal gate controller and the original remote side by side, press a button on the original remote, then press the corresponding button on the universal remote to copy. Clear the old code: Press and hold the A and B keys simultaneously until the LED indicator flashes continuously. Test the code: Press any key; if the LED indicator flashes, the