Is there a way to uniquely identify rtl_433 devices to avoid duplicates?

Configuration
1

Not know if I am asking for something which is impossible to do, but let me try.

I got and installed RTL-SDR Blog R820T2 RTL2832U to detect data from 433Mhz, 915Mhz devices. Installed 433_rtl and 433_auto_discovery and everything seems to be working.

Here is my observation - if a 433mhz device is turned off, leaves the reception area, or the HaOS is rebooted, upon next detection, the device is getting a different ID. This means that I have to manually
remove old devices from the devices list, then manually clean data from Developer tools->statistics, then manually add the same devices with new ID to new/existing dashboards. Then the cycle continues.

An example - I have Thermopro TX2 sensor. It was registered as Thermopro-TX2-9-1-102. From this name, Thermopro-TX2-9 does not change. -1- is one of the three frequencies one can select by moving the switch, and 102 is the device ID assigned (my assumption) - by RTL_433.

Everything worked fine, until I replaced the batteries on the sensor. This time the device came back as Thermopro-TX2-9-1-30. So I had to go and update everything.

The above becomes clear if I run MQTT Explorer. You can see below that while I have just three Thermopro devices, there are more than one instance of each device if the device was powered on/off.

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The same can be seen with other devices as well - you can see a number of entries under TPMS-Schradar.

So the question is - is all this situation unavoidable?

2

I think that number is something your devices is adding to make it possible to use more devices on the same channel.

3

Could you please clarify what you mean?

In terms of Thermopro devices there are only three channels marked as 1/2/3, nothing else.

For other devices there no other devices on the same frequency with the same ID.

4

If you have some noise on one or two channels that makes those channels unusable to thermopro devices or if you have more than 3 thermopro devices, then they can still be used, because they can all run on the same channel.
If a thermopro device happens to use the same channel and get the same ID (those 1-3 last digits) then the user will discover it and just take out the batteries and reinsert them for another ID to be assigned.

The manufacturer did not make a way to identify a specific device, because it was probably not important.