1.RF Remote Control System 2.RF Remote control 3.wireless remote control 4.2 Input / 2 Output / USB Wireless Remote Control on off switch ... which can be used for authorized door access, controlling gates, switching of remote equipments, car parking systems. Actually ... 16. Unmanned machine rooms;17. Control room application;18. Automation System, M2M;19. GSM Access Control System, GSM Gate Opener, etc ...