Heiman smoke sensor

Devices & Integrations
1

Hello guys,

I’ve bought 4x Heiman smoke sensors with z-wave.
I am having trouble with 2 of them going offline.
If i look closer, it seems like the messages sent goes lost:

  • Received Messages From Device: 284
  • Received Messages From Device (Duplicates): 0
  • Messages Transmitted to Device: 385
  • Messages Transmitted to Device (Failures): 194

Yesterday i tried a reset of one of them, but right away it starts failing again.

  • Received Messages From Device: 24
  • Received Messages From Device (Duplicates): 0
  • Messages Transmitted to Device: 36
  • Messages Transmitted to Device (Failures): 11
  • Updated Time: 2023-02-06 8:08 AM CET

Any idea’s?
Also, one of them is a few meters away from the hub, while the other one is 15 meters with 2 walls between.

2

That’s a very high percentage of failures. :disappointed_relieved:

What’s the material of the walls? (Wood, brick, concrete, plaster, etc?)

Any foil wallpaper? Water features? Large metal appliances? large mirrors?

In any case, you may need to add an additional zwave repeater halfway between the hub and the smoke sensor. Any zwave smart plug should do it. :thinking:

3

For the first device there is just 2 meters and a door pretty much. So i cannot be cause of walls or anything like that. The other you could argue. But i doubt it. My house is not that big. And the walls is made of gas concrete

4

Is “gas concrete” the same as “aerated concrete”? If so, that will block a lot of radio signal, and can be very challenging when laying out a network. :thinking:

As far as the one that’s in the same room, not sure what’s going on there. But it’s not necessarily on a direct line to the hub since the antenna is only on one side. So it’s possible that in a wooden house the signal would go through a wall, hit a repeater, and angle back down through the ceiling, but it is not able to in your house because of the concrete. It’s just hard to tell without actually being there.

Smartthings doesn’t really give us tools to check network strength. :disappointed_relieved:

What country are you in? There are some thirdparty diagnostic tools available, which might be worth it with your architecture, but they do vary by region.

5

Yes that is the word for it haha sorry. I am in Denmark. Well if it helps i can take a picture or 2 to show how it is installed ?

1 Like