I purchased mmWave Red Presence Dimmers for bathrooms and a utility room, where the light switches face into the room and away from the rest of the house. The idea was that this layout would reduce the chance of picking up movement in nearby rooms through the walls. A week in, I have to say the reliability of the motion detection far exceeds my expectations. This is most likely due to the mmwave sensor being of the 60 GHz kind, rather than does operating at 24GHz. With my initial worries gone, I’m now considering them for other rooms as well.
I need to look into using these in my projects 
Walk In Closet Install:
I’d like to replace an old Jasco Motion Light (the one that originally triggered the development of this dimmer} in the master walk-in closet. The dimmer would point into the WIC and toward the kitchen on the other side of the wall. Anyone know how prone to false motion detections this setup might be?
Build Quality:
Compared to the other dozens of Inovelli switches and dimmers in my home, I had the impression that this model’s design has little room for tolerances given the very tight fit of its paddle seemingly causing a slight bowing of paddle. Also, the screw metal seems softer than all my other dimmers as both load-side screws were either already stripped or did so way too easily.
I found Inovelli’s official suggestion to either send the unit in for repair or request a replacement screw for a DIY fix. Since I have plenty of old smart switches, dimmers, and outlets, I harvested screws with attached nuts from an old Jasco fan switch. Using a caliper, I confirmed they were virtually identical in size and they appear to be stronger.
I’ve installed hundreds of devices from several brands and have never had screws strip on me, so I can’t say I’m thrilled. That said, the repair itself was very easy even though I worried the very tight fit of the paddle would result in broken plastic tabs.
The final installation went smoothly and works without issues.
Temperature Sensor:
I like that these dimmers have an internal temperature sensor to detect overheating. However, the three I currently have are all installed indoors in interior walls, along with one additional Inovelli fan switch. Why is there such a large difference between two of them reading 49 °C and one reading 37 °C? All of them had been off for a long time when I took these readings. Also, isn’t 49 °C a bit too high?
3 x Attic Installs - overheating issues?:
I have two old Jasco switches in two attics and a Blue Series 2-in-1 dimmer/switch, configured as a switch using the relay, in my third attic. I plan to replace all three with switches from the White Series to build out my Thread mesh. My usual setup is a Z-Wave Red Series dimmer or switch for the light in each room, a Zigbee Blue Series fan controller in most rooms (7 rooms have either a ceiling fan or exhaust fan so there is good coverage), and now I need to expand the Thread mesh by installing in-wall outlets and these three light switches in the attics.
So far, I’ve only had a Jasco switch fail in an attic, but given the temp readings discussed above, I’m concerned that the Inovelli switches may overheat given the attic easily reaches 40-45 °C or higher in the summer. The switches would only turn on a few LED bulbs in relay mode.
Compared to the many indoor failures of Jasco dimmers/switches, the ones in the attuc faired well with only one failure in years. This gives me high hopes that Inovelli will do better.
For safety, I can replace the plastic boxes with metal ones so any thermal events (
) can be better contained, but I’d also prefer not to burn through switches due to heat-related failures.
Note: Edited for clarity. x2