ᐅ Window handles with position feedback or window sensors?

I am currently planning the implementation of our smart home in the new build. I am still unsure about which basic system to use. However, I am already gathering components to be able to make comparisons.

Since I want to read the status of windows and patio doors (open, closed, tilted), I have researched and come up with the following options:
1. Window handle with integrated EnOcean transmitter (maintenance-free as it does not require batteries)
2. Wired window contacts installed in flush-mounted boxes. The cables would then be routed to the distribution panel.
3. Wireless window contacts with “Tibber”-style radio communication, no cables, no batteries

For me, window handles like those from HOPPE seem ideal. Does anyone have experience with such window handles? Since I do not want a closed patio door to be considered “closed” (the roller shutter should not close and lock me out if the patio door is only latched), wouldn’t only such a handle be suitable, or is it possible to simulate this somehow with window contacts?

Wouldn’t it be “smart” to choose these rotary handles instead of wiring all the windows to the distribution panel (do all contacts need to be wired individually to the panel, or can this be shortened by using multi-core cables)?

One more question:
If the window is forced open, the rotary handle does not detect this, right? Or is there a solution for this as well?

With Roto MvS contacts, you can easily achieve this just as you envision. (Or with others that have a similar setup/approach.)

Smart solutions are not measured by the amount of wiring used, but by how reliably and safely the entire system functions. In this respect, a hardwired connection is clearly ahead of all wireless solutions.

bauenmk2020 schrieb:

Since I don’t want to consider a sliding patio door as "closed" (the roller shutter shouldn’t close and lock me out if the patio door is only slid shut), only a handle like this would be suitable, right? Or is there a way to simulate this somehow with window contacts?

You simply position the reed switch (or the magnet) so that it opens when the handle moves.
Ask the window installer; they have been doing this for decades, especially with alarm systems and such.

Edit:
We use Siegenia Aerocontrol UMS 001, but only with locking monitoring; there is also a version with tilt monitoring.
Price is about €35 each net, with tilt monitoring it should cost around €70 net.

bauenmk2020 schrieb:

(Open, Closed, Tilted)

What’s the point of "tilted"? It usually means double the cost, and as mycraft mentioned before, the issue of a "ajar door" can also be solved with just one sensor.

bauenmk2020 schrieb:

One more question:
If the window is forced open, the handle won’t detect it, right? Or is there a solution for that too?

That’s probably correct. Mainly because without a turning motion, there is no energy to send a signal.

guckuck2 schrieb:

Why tilt? Usually, it means double the cost, and as previously mentioned by mycraft, the issue of a “ajar door” can also be solved with a single sensor.

With tilt detection, it would be possible to have shutters move to a slightly open position or blinds adjust their slats to allow some ventilation when the windows are tilted open. Alternatively, if the windows are tilted open and it starts to rain, the blinds or shutters could automatically close to prevent water from getting inside. Another option would be to detect this status by combining an unlocked handle and a closed sash.

In general, I would recommend wired window contacts, especially since EnOcean handles cannot detect if a window has been forced open or was not fully closed even though the handle was turned to the “closed” position.

Mycraft schrieb:

You can easily do this with Roto MvS contacts just like you imagine. (Or with others having a similar arrangement/approach)

Can I install these on every window and patio door? I have no idea which windows we will get (except for the size and U-value).

From what I’ve read, I need two of these to also detect tilted (ventilated) windows? If I then add cable + slot + component in the control panel, I think I’ll end up costing about the same as the window handle itself.

When wiring the contacts, do I have to run each window contact individually to the control panel? Or can I connect several window contacts to a multicore cable and then just run that single cable to the control panel, where the wires get connected to the correct terminals?

guckuck2 schrieb:

Why do you need tilted detection? That usually means double the cost, and as mycraft also said earlier, the issue of “ajar door” can be solved with a single sensor.

My better half likes to leave windows open...