Motion Sensor Suggestions

[bertabcd1234]

I wrote this a year or so ago and still don't think much has changed. (But like the above, if you made me pick one without further explanation, it would be the Iris v2...unfortunately discontinued.)

Best motion sensors - Reliability & Range most important

Honestly, I'm not sure much has changed in a year except for the introduction of a couple new products. Your best choices (unless you have a Lutron RA2 system) are either or both ZigBee or Z-Wave motion sensors. Each has categorial advantages and disadvantages: Z-Wave uses a lower frequency and tends to have better range. ZigBee tends to report motion faster (usually <1s of difference but sometimes more; annoying with motion-based lighting). With repeaters, range is not necessarily a problem fo…

I might add to that that I've tried a few more: the ZSE18 and HomeSeer HS-MS100+, both fairly unimpressive if speed is a concern; and the Zooz 4-in1, a better version of its predecessor (and a better version of the Monoprice lookalike), though still not as snappy as Zigbee in my experience. The Aeon Multi 6 remains slow (even on USB for me), expensive, and battery-eating, but many people like it for some reason.

...and later for the Iris v2s again:

Best motion sensors - Reliability & Range most important

I'll second that advice--I can't believe there are still so many Iris v2 motion sensors floating around, especially at this price. But if you insist on something new, my two recommendations would be either the Sylvana/Osram Lightify motion sensor (looks like a slightly uglier Iris v2 and is/was made by the same beloved OEM) or the latest (2018/v5) SmartThings motion sensor. Both are around $25 USD, which isn't bad--the Iris ones were usually around $30 new, and at the time I thoug…