Reliable system with weaknesses in the external siren

The most important thing I've anticipated the alarm for about 3 months in operation and it works flawlessly. Not a single false alarm and the deliberately caused by me alarms were triggered reliably. And that is what is desired.

But in order. The individual components of the system make a solid and high quality impression. The programming of the individual sensors is straight forward. Not least because the operation is set up well thought out and logical. Who sits down a little with the instruction manual easily understandable apart, will have no problem to take the alarm system in operation. The app is certainly in need of improvement, but not as frequently used by me. due to this
I can with what the app makes life good.

The partially mentioned lack indoor siren is not missed by me. The Emergency Operations Centre alerted loud enough. But I miss a glass breakage sensor. However, this should be available soon.

The outdoor siren will also work properly and can be adjusted easily with the DIP switch. The main weakness, however, is that the external siren does not satisfy the IP44 standard. It is thus not 100% waterproof. It's incomprehensible to me, as the name already says that the siren will take its place outside.
An inquiry with the always accessible and really helpful support from Blaupunkt / Climax Germany showed that this flaw has already been passed on to the development department of the manufacturer. It remains to be seen is so rectified as quickly and in what form.
Who can attach the external siren under a roof overhang, has bezgl. Waterproofness certainly no fear of problems.

If this shortcoming would not be with the external siren, I would have awarded 5 stars for the entire system. Due to the fact that here improvement is expected and what is most important, namely the reliable functioning of the system,
I forgive good conscience 4 points.