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.
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.
4CH RF transmitter and receiver can be used for security system, electric doors, electric windows, lifting equipment,industrial control and household equipment.
High quality AC220V rf receiver are used for security system, electric doors, electric windows, lifting equipment, industrial control and household equipment.