The SRP-01 and SRP-02 roller shutter controllers enable the construction of window roller shutter control systems both in a wired version and with the use of the EXTA FREE wireless control system. The SRP-02 controller is a construction that allows you to control any radio transmitter of the system and local control using a typical shutter connector. SRP-03 is a controller that enables the integration of wired roller shutter controllers SRP-01 and SRM-10 as well as devices from other manufacturers with the EXTA FREE radio control system.