Have the part for Rollotron 9300 bought. The sensor is inserted into the Rollotron down and attached to the window by means of suction cup at the desired height. Now the blinds can be closed even after appropriate brightness or twilight automatically or only partially close (at sun up to the sensor height) and after a certain time, if necessary, also ramp up again. Programming is very easy. Press two keys at the desired brightness / twilight and it is stored. In combination with the timing arise further options.
My Settings here only as a possible Ex .: Sun shines too bright, roller shutter moves, controlled by sensor, up to the sensor height down. Automatic sensor are the shutters after a few minutes something free, so that it can examine the sunlight. Is the sun a long time away, the roller shutter moves up. From clear dawn (end of October around 19 clock) drives roller shutter by sensor controlled all the way down and only early at 8 clock by time automatic back up .... That works really.