Alarm makes only Aussensirene really mind. So ordered the outdoor siren. Oh well. The integration into the system is without any problems, on the website of the dealer there to even a nice video. Positives: According to the neighbors get with so what happened. The LED flashbulbs does the rest ... Negatives: It is explicitly a Aussensirene advertised .... outside is, at least for me, spritzwassergeschuetzt, dustproof. An IP54 eg Has any halfway reasonable distribution box from the hardware store for 2 EUR. What is being sold here is certainly suitable for indoor use, perhaps even outside, in sheltered places. Whether the siren coped permanent direct exposure to rain, snow and condensation to be seen.
I for my part have the device was opened (warranty seal broken) and at least the sealed enclosure of the red cap with sealant.