Magneto Link, not considers reasonable

The idea is good, the implementation not. I bought the Mumbi RMF106 / RMF170RF with the essay for networking. Amazon gave me these magnets then recommended to directly. Unfortunately, I discovered that the magnetic force in these heavier smoke detectors is marginal, especially once you use the test function tilts the detector on the magnet and falls down. This can be avoided, however, if you know it.
Is much worse that the adhesive have fallen by following the instructions do not adhere properly and the detector after a few weeks. Since then helped the trick with the heating of the tape with a hair dryer, which then stops. Unfortunately, some indicators did not survive and the test function causes no sound. Over the radio the other detectors are still active on the network - not trust it and now order new detectors. The rating by one point is hard but true Amazon recommend the magnet to these detectors.