The best of all bad radiator controller on the market

I had to try different Heizkörperregler because they were always broken. Cheap products (under 20) were either immediately or broken within a few months. This manifested itself, for example, by the fact that they were cranked up the heater full and no longer turn down. In response, I wanted to try a brand product and bought this thermostat. One in four had to immediately be exchanged because it was defective from the beginning (display showed only crap on). Then I have all four then installed and now made two years later, a total of the following experiences:
PLUS:
- Governs very precisely and quickly
- Built machanisch solid (Although only plastic, but cheap compared to controls a much better processing)
- Battery lasts about 2 years
MINUS:
- Programming more cumbersome and less flexible than in the Chinese competition
- Open window recognition is not always reliable
- After exactly two years was one of the four knobs broken (sometimes drekt the radiator at all and bleigt so until you rausnimmt the batteries and re-used - no matter what you do or suppressed), while the batteries have been replaced but the misconduct is remained
CONCLUSION:
- For the money you get with this controller a controller which really works in comparison to many other
- However, the manufacturer has obviously massive quality problems and therefore only a conditional recommendation with three stars