Very noble and high-quality design. I had some concerns about the size, but because of the smoke detector looks very high, he did not verschandet the ceiling. Vision through the chrome grille very technical and stylish from. Easy installation with only one screw possible that he is very easy. Nice and loud! And easy to test (monthly battery test!). Absolutely empfehelenswert, though not cheap. But as I say, Henry Royce: "Quality remains, long after the price is forgotten."
