What you will receive: 510 universal gate remotes (compatible with 433.92 MHz gate openers), equipped with a carabiner clasp, which can be hung around clothes, pants, bags, etc., for easy carrying; the quantity is enough to meet your replacement needsOur product can copy the IC model: PT2260, PT2262, PT2264, PT1527, PT527, PT1587, PT1827, HS2260, HS2262, HS2264, HS2240, HS1527, HS527, HS1587, HS187, HS1827. RT226 0, RT2262, RT2264, RT2240, RT1527, SC527, SC1587, SC1827, SC2260, SC2262, SC2264, SC2240, SC1527, SC1587, SC1827, EV22626262626262. EV2266 4, EV2240, EV1527Easily erase old codes: long press the A and B keys. 2. Until the LED indicator keeps flashing, you can release it. Press any key to test, if the LED indicator flashes instead of keep flashing, which means the codes have been erased.Duplicate methods: After erasing the old codes, you need to put the universal remote for the door opener and the old remote side to side, and press the A button, then press the corresponding button of the old remote to copy, the LED indicators flash about 3 times before you can release, and other keys accordinglyWidely Used: These remote controls can be used to open, close and stop, convenient and practical, which are suitable for roller shutters, roller gates, telescopic doors, garage doors, road gates, etc(SZMG)