The processing and function of the transmitter is impeccable, super quality. Unfortunately, Sigma has forgotten that there is not not only bikes with 52 RH. The cable is way too short. Since Sigma should spendieren least 15cm longer on cable length. So I had in my wheel split the cable, new cable (20cm) solder and seal them with heat shrink tubing. For longer cable I would have liked to spent a little more money.
The magnet is sufficiently strong and sticks with the double-sided tape very firmly. Very good is also the fact that the magnet two different heights can be mounted.
The last point, the product saves just over 3 points, otherwise I would have awarded only 2 points.