To install the KeyMatic should einrechnen good half an hour. If the locking cylinder protrudes a few millimeters into the inside of the door, a mounting without drilling is possible. The Teaching the supplied remote took some time here I had the feeling that the guide was a bit misleading. In the end, however, it has then worked. A comfort gain that you do not want to miss after a short time. Timed precisely the way or automatically shut off in the absence (for example, if not a registered iPhone more is detected via Bluetooth from the FHEM headquarters), bring not only comfort but a security gain for your own four walls. Much more difficult, however, was the coupling with FHEM, quasi the open source control panel for different systems (HomeMatic, FS20, InterTechno, etc.), which can also be realized with such jokes as presence detection uA. The control of the KeyMatic is possible with this solution over the HMLan adapter which is normally used only for the configuration of the components and can establish a secure connection to the signed KeyMatic. A comprehensive guide that shows what conditions must be met and how the actual device incl. Teach works is under [...] to find. This saves you time and hassle.