I wanted to order the original BM of Abus. Shortly before this product, I noticed. I was a bit skeptical whether the function and guarantees compatibility may ist.Ich daring and ordered. The package arrived, the package was perfect. Assembly and teaching was very simple (like the original BM). Now, after three weeks, I am very glad to have opted for this BM. It is cheaper, installation problems and in my opinion, slightly better detection than the original.