The assessment refers exclusively to the indication on the Web site on which was only given concurrently, that is required to attach these heads have an additional valve "Danfoss thermostat head RAW 5110 Exclusively in connection with Danfoss thermostatic control valves". This needs to be shown more present. Thus, at least my false order could have been avoided. For those who think now: "Then read it accurately" is said right have you! But something essential simply needs to be optimized by the seller.
The thermostatic heads themselves are determined quite alright. Testing I could not, of course, even though I tried different radiators and determined at 1h time wasted it did.
The only difference in relation to the picture is that the arrows on the heads (blue = clear, red = warm) not in color, but in reality are simply gray, but who cares ;-)
