[MikeM]

MikeM, allow the use of the same type of sensor, on all of the three units seems to me a good idea.
I already did some changes in the RX and WD software to support the SHT31 (and the SHT21 too), however at moment I don't have any SHT31 available to test the results. Would you like to help me, trying a test version?

Regards

I will be happy to assist.
My system is not up and running as yet, still waiting for antennas RF tx/rx modules and TMP36 sensor.

I did manage to figure out how to test the TX unit using the debug function in the TX configuration through the Arduino IDE serial monitor. TX unit working as it should, except for the system temp (still waiting on TMP36) and RF part due to waiting on the antennas.

Haven't figured out how the RX unit configuration test mode works yet.

The WD unit is working ,except for not communicating via RF yet. I suppose the inside temp would show on the TFT display when connected and configured.

Not sure if the current state of my system will be of any help, but if I can assist I'll be glad to do so.