The 303 MHz frequency is added at 315 MHz / 433 MHz, and the rolling code is received and transmitted. The remote copier car diagnostic tool code reader and scanner is an upgraded version and a customized version. Various remote controls (vehicle remote control, garage door, home alarm series remote control, etc.) are acquired within 0.1 seconds. It is controlled by the 1, 2, 3, 4 keys, just like the original remote.