A product that permanently warns no actual danger has no use because I have the beautiful design anything. A smoke detector is not a design object but a utility object.
Technically, the part is not mature, which show the many negative reviews, to make matters worse, it is also one of the costliest. If you installed 5 piece, are about 100 away.
On the positive side, I can only note that I did not take the radio version, the noise would be unbearable in the head.
Conclusion:
Dear no smoke detectors as such a useless disturber of takes your sleep.
1 point