ᐅ Reliable Wireless Smart Home and Security System

Hello everyone, from the start, I have a 1970s house, so unfortunately only wireless options are feasible.
While writing this, I realized that during the upcoming facade renovation, I could install empty conduit pipes under the insulation, but the effort and cost would be significant.
So far, I have been experimenting with a Homematic IP access point – 5 smoke detectors, 1 water leak detector, 1 humidity sensor, and a weather station. Everything was fine until one of the smoke detectors suddenly went off without reason, startling everyone, including the dog. This revealed a weakness in this DIY system – the manufacturer showed no response (via contact form), and I found others with similar issues in the forum. I realized that for alerts related to water and fire events (I don’t prioritize a full security alarm system), I need 100% reliability. There is nothing worse than false security.
The system is ideal for DIY projects, but my trust faltered regarding the alarm functions: there is no battery status indicator, and the detectors can’t be passively monitored. This means if the battery dies or the wireless signal is lost, I won’t be notified.
I see two options – switching to hopefully a better/more professional system (Abus, Lupusec?), as Telenot is too expensive, or staying with Homematic IP but moving away from the simple cloud solution and instead using the CCU for local management.
What do you think, or what has been your experience?

You contradict yourself in the thread title. It’s either reliable or wireless. You can’t have both. Even though some people now claim to have used this or that wireless system for years, no. Wireless still has too many issues that simply don’t exist with wired systems, and it looks like that will never change. Because all the promises made over the years and decades have remained unfulfilled.

So, if you want or need a reliable alarm system, you have to consider wiring. The rest can then be done wirelessly, for example with Z-Wave or similar. Lighting and such is often less important for many people. Users tend to accept multiple activations or approximate values in those cases.

paulch7 schrieb:

If I prioritize 100% reliability, there is nothing worse than a false sense of security.

I would first consider whether you really want to rely on wireless and batteries if your requirement is 100% reliability. Wired systems are more reliable than wireless.

Hmm, smoke detectors installed on the ceiling and water sensors placed near the washing machine, in the boiler room, and behind the dishwasher—how is that supposed to be wired in an older building? I understand the argument for the reliability of wired solutions, but then you have to design all components with redundancy, etc. There is no such thing as 100% security, but not being notified about battery status or signal loss is a product issue. Apparently, Bosch Smart Home already does this better, but I’m not sure if alarm systems connected to the internet make sense. It would also be problematic to operate different wireless systems on the same or similar frequencies. So, I’m looking for a reliable manufacturer with adequate support that covers a wide range of functions. Abus or Lupustec come from the security sector, but if I need other features later, it will probably be limiting.

Matter will soon become the standard. I believe this will boost things significantly again.

Loxone Miniserver Go, connecting the rest via Air works reliably as long as the Air connections are stable. Since it’s wireless, even a small change can cause problems.

Aberman has everything, including alarm functions, etc.