TF21/24 - TF21/24 with 24 V output; TF41/44 with 230 V output. Remote steering with the use of a radio receiver at the frequency 433.92 MHz or an infrared receiver. Input for a wind sensor with control of the wind speed sensor by use of a trimmer. The potential to manage two 12 V rain sensors at the same time. Three LED diodes display the state of the remote control and the whole device. The functionalities of the device, except for the rain sensor, manual operation, thermostat, contact and the like, may be introduced with the use of manual buttons. The device is compliant with Directives EEC 89/336 and EEC 73/23, as well as their amendments.