I wanted to split my sensor values for a couple of reasons:

Easier to replace a device in Domoticz (and retaining the log) when you don't have to worry about getting a TempHum to replace your previous TempHum. Now I can just split the values into dummy devices and then update the script with the ...

RFXtrx433E Version Ext2/1020:
Prologue/Clas Ohlson Extra Temperature Sensor ( Clas Ohlson 36-4744 ) - Working .
Type: Temp
SubType: RUBiCSON
Prologue/Clas Ohlson Extra Temperature/Humidity Sensor (TW003) ( Clas Ohlson 36-4441 ) - Working .
Type: Temp + Humidity
SubType: Rubicson/IW008T/TX95 ...

I'm not a programmer, so this is based on my ability to read C++ code (GetSerialPorts in Helper.cpp) :shock:

In regards to udev rules, you can name the symlink anything you want. HOWEVER, in regards to Domoticz, the symlink name must begin with one of the following:

ttyUSB
tty.usbserial ...