CRT86 system is used to controle securities (mechanic sensible ribs, etc.) and allows the connection, without using cables between the security device installed, for example, on the moving side of the gate and the control board of the motor used to controle the securities. The system is certified in compliance with the new rules and thanks to wireless technology "live" allows to controle up to two security elements connected to the transmitter. The system is composed by a transmitter unit TXCR8354 and by a receiver unit RXCR8355.