4 buttons universal remote transmitter duplicator with CE ROHS JJ-CRC-I11 is mainly used for control board, garage door opener,and other alarm security.
Self-learning garage door remote control duplicator copy face to face without any machine. It is used for home alarm system, auto gate, door motor or other security product.
The door opener remote key fob is easy and convenient to used for motorcycle alarm system, car alarm system, auto gate,door motor or other security product.
The RF transmitter receiver JJ-JS-084-1 are mainly used for automatic door. If your control board can only controlled by rolling code, buy it, then you can also controlled by fixed code.