Of course it’s certainly not WiFi - that was a total mis-speak on my part (too easy to use these type of words when using them every day) - mea culpe, I knew it wasn’t and used that term anyway. I intended RF and it came out WiFi. I did say that they inter-connect wirelessly on their own network and does not operate on the LAN - the latter of which would have thereby implied not WiFi)
@Technodad - most helpful post!
I just received the modules and FCC ID is SAK25569999
In fact the frequency used on these devices (The P4010 Series) operates at 925.9 MHz
Other than the frequency, the operational details are confidential but I think your speculation on the operation are close to some manner of how it works and align with my thoughts.
The only clue I can find so far is in the independent testing report which shows a pulse of 3.6mS duration over a 100mS window
I don’t want to distract too far from the primary topic @vseven excellent thread but this is interesting in regard of emerging wireless technologies
Specifically the subject of battery conservation for Wireless Smart Home devices which we are discussing
Great video here regarding Shelly’s new Motion Detector which utilizes Silicon Labs technology.
Jump to 15:00 to see beginning of that part of the presentation - Silicon Labs presentation itself starts about 2:30 after that.
(This technology IS for WiFi)