Very good in all aspects

Hab chose this model because I thought it would be less conspicuous than the clunky larger models. This has not materialized. Based on the excellent workmanship and the successful designs of the detector looks but still acceptable from.

I checked with a few burning matches the function. It takes approximately one minute until the alarm starts. This inertia is likely to have wanted to avoid false alarms? In any case, the siren starts up and is probably to ignore barely.
Installation is easy, the manual very well.

Clear recommendation.