Reading data from the water meter with FLOWIS+ module at 868MHz

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#1 20100653 13 Jul 2022 21:02

Anonymous Anonymous

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Post #1
20100653 13 Jul 2022 21:02

They are replacing my water meters with ones with a FLOWIS+ module. The only thing I know at the moment from the specifications is that the module operates at a frequency of 868MHz. The module transmits data cyclically - this also follows from the specifications.

Is there any solution to read what the meter is sending out?
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#2 20267467 04 Nov 2022 12:46

woszu woszu

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20267467 04 Nov 2022 12:46

Hello, have you accessed this overlay?
I wonder if it is possible to read the data in some simple way. In Apator overlays people do it via wmbus, using a TV tuner. It's a bit too complicated for me.
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#3 20267477 04 Nov 2022 12:54

gh00st gh00st

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20267477 04 Nov 2022 12:54

At my place they installed similar, only branded on Flow Meters.
The rtl-wmbus reads this data, unfortunately the telegrams are encrypted with an unknown key.
It is also impossible to find any technical documentation for this (FLOWIS+ as well as these FLow Meters).

The only option is to talk to those who installed it, maybe they will make the key available.
After all, I am the one paying for the meters and legally the devices belong to me .
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#4 20267604 04 Nov 2022 14:42

woszu woszu

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20267604 04 Nov 2022 14:42

I wanted to buy this flowis as a second counter, so as not to mess with the main one. But it turns out that I have the IZAR overlay on the main one and it is possible to read and decode data from it. Of course this requires some tuners, wbmusmeters, etc, etc.
One electrode colleague did it simply: on esp8266 + radio cc1101. I will be figuring out the subject
#5 20270288 06 Nov 2022 07:55

Anonymous Anonymous

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Post #5
20270288 06 Nov 2022 07:55

gh00st wrote:
The only option is to talk to those who installed it, maybe they will share the key.
After all, I am the one paying for the meters and legally the devices belong to me
.

I had a chat with one of the main distributors. They don't have the faintest idea about anything.... They confuse terms etc. They just "use" it by getting meters and reading devices where these keys are built in.
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Reading data from the water meter with FLOWIS+ module at 868MHz

Reading data from the water meter with FLOWIS+ module at 868MHz

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