I am a new user. I have six Iris V1 motion sensors controlled by the Hubitat. They gave me false alarms every night. Every time, it came from a different one. Is there a way to reduce the sensitivity of the motion sensor?
Hubitat official support is not available. I sent an email to their support team. This is the last email from them. No solution.
Well, they are available, they replied to your email 
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As the boilerplate response says, the issue you reported is apparently one that’s been identified previously and has been referred to the developers, but has no solution yet.
Unfortunately, since Lowe’s shut down the Iris platform two years ago, I’m guessing it’s unlikely there will be much (if any) time put into further development of the v1 sensors drivers, which used a proprietary zigbee profile.
I can’t actually speak for the developers of course, so it’s always possible there is a fix in the works.
However if I had to guess (based on my experience with later generation Iris sensors), I’d say they probably don’t have an adjustable sensitivity. Maybe Google around for the original Iris user manual for the device; if it doesn’t explain how to adjust sensitivity, that probably doesn’t bode well.
Having been with Iris from the day it started until the day it ended I've never seen any discussion about the sensitivity being adjustable.
My impression as well, although I’ve only used their gen 2 and gen 3 devices with ST and HE, so couldn’t say for sure.
It would be a strange “upgrade” to go from a generation of motion sensors with adjustable sensitivity to the next gens without that feature though.
Except that all 3 versions came from different manufacturers.
Indeed, I’m just wondering who would award the contract to the manufacturer (centralite for gen2, I forget who made gen3) that is offering fewer features than the first gen sensor?
Of course, it could’ve gone down that way nonetheless 
. It’s not like the Iris platform was a runaway success for Lowe’s, so perhaps the team in charge made one or more questionable decisions along the way...
The 3rd gen sensors were made by Great Star. The also make other electronic devices for Lowe's.
The sensitivity of motions sensors is a common issue. I have an older Iris sensor. I love using it in my basement because it is so sensitive. However, I once had it trigger when a mouse got into the basement. Placement of the sensor is critical to minimize false alarms.
I have the opposite issue with some older Smartthings motion sensors. If you are off to the side, they will trigger about 10 ft away, but if you are right in front of them, you have to get to within about five feet before they will trigger.
I recently purchased a Zooz outdoor motion sensor. The sensor can be just as easily used indoors. You can adjust the sensitivity within the device driver to suit your needs. However, they are not as inconspicuous as the Smartthings sensors.
I guess my question is what is triggering them? Different things would have different solutions.
Thank you all for your comments and suggestions. I rearranged my sensors and adjusted facing angles et al. Hopefully, it will not give me false alarms. Fingers crossed!
The zone motion controller app has several great options for combining motion sensors that can make for more reliable motion-based automations. Reducing false positives is one thing it can be used for.
These sensors do not have a sensitivity adjustment, and there are no plans to further develop any of the drivers for the iris v1 devices.
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