Radio gate opener CAME TOP D4R, 4 channels, 433.92/868.35 MHz, rolling code

The remote control replaces all previous models with rolling code technology: ATO2, ATO4, ATO2EV, ATO4EV, ATO2D, ATO4D, TOP2DR, TOP4DR.

Integrated low-battery function.
The low-battery function warns you in advance when the battery is about to run out: while the transmitter is in use, the LED light does not flash, but remains steady, alerting you of the need to replace the battery,

A fully functioning radio transmitter is required for duplication.
1 - Simultaneously press buttons 1 and 2 (top left and bottom right) on the new remote control until the LED starts flashing rapidly.
2 - Press the button you wish to memorise on the new remote control; the LED will light up steadily.
3 - Within 10 seconds, place the working remote control on the bottom of the new remote control and press the key to be duplicated for a few seconds.
4 - Once memorised, the LED on the new remote control will flash 3 times.