This Remote Controller just use can be used in (1038026)
Pairing:Fast press the black button on Sonoff RF twice, the red LED blinks once, then press one of the buttons
of your RF controller to set pairing for 1-2 second.
Clear coding:Fast press the black button on Sonoff RF three times, the red LED is on for 3s, that means the RF controller code
has been cleaned. If you failed to pair, please try to clean first.