Smoke detectors can be found en masse, some with tempting prices. So what to buy ?? I have searched and over and lies down. Ultimately, I have but then decided to go for a branded product. ABUS is on it, VdS are to inspect the parts. With a brand device I should also be able to rely on it, that it's any good. Honestly - why save on the security ??
In order for a battery change is not an issue so quickly, I have the ABUS 510250 RM 15 ordered with lithium battery. With the exception of the bathroom all rooms are now equipped with it.
The smoke comes well packed, with detailed instructions. Function and assembly are very well explained. The appearance is of high quality and unobtrusive. The battery is already in the smoke detector and only needs to be connected. Mounting is via the supplied dowels / screws. It is a 5 series of shallow borehole required. Simply the carrier plate from the smoke detector take, mark the holes on the ceiling, drilling and screwing. The smoke detector in the carrier plate arrettieren and already he is armed. The assembly is done in five minutes. Note the test: The part is hellishly noisy! The operational readiness is indicated by a diode that flashes in rhythm even seconds 47. The flashing is by no means disturbing. A weakening battery is to be signaled.
I would buy this smoke alarm immediately and definitely recommend even further!