RF emitter with programmable security code. It allows doors to be opened at a distance of up to 100 meters. It allows opening the door in accesses with receivers or 868Mhz radio frequency (RF) controllers. It has a button / s to activate the door opening, a LED indicating the pulsation and verification of the operation of the internal battery. It has 4 buttons. Each issuer has the identification code marked on the remote. It is necessary to register the remote control code on the receiver.