We have also brought us the Honeywell radiator controller HR 20 in threes, and also we have Danfoss radiator valves. In the adapter table was not readily apparent which adapter for it now is the right, but on the exclusion method could try it simple. There remained only one could fit on the. So this attached and plugged the controller. The next day, I realized that all three rooms were completely overheated. On closer inspection I could easily pull down from the valves the controller. Thus, it is no wonder that the rooms were too hot. The problem was that the adapter is not sitting in the right place and thus were the regulator too loose. After the adapter (a piece back on) were again properly fixed everything also works flawlessly accurate. The correct position was not to be found, unfortunately, from the manual out. For devices in this price range I would have liked to have more functions on the display. It would have been too much to display next to the desired temperature either the time of day or the current temperature.