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I like the multi sensors but as you would expect my stand alone motion sensors work better at motion sensing. The only thing that really bothers me is the design of the housing. It seems clunky and thin compared to the other sensors I have. The mounting post threads into the removable back door. I can’t twist it off of the mounting post because the post turns in the socket at the other end, so that just leaves trying to slide the lock to remove the door leaving it up on the ceiling. The battery runs down a lot quicker than I’m used to but that’s likely because of the 3 sensors compared to 1. I set it to report less and less often trying to stop it from draining the battery. I use it with a hubitat elevation on the native driver. The lux and temp sensors seem to be right on once I figured out the offset values. It does the job, but there are false motion detections at night. I will continue to use it and I will probably try another brand when I buy my next sensor. I do like that you can change the color of the led or disable it.
I purchased the tri sensor to use as a temperature sensor for my automated home. This unit pairs quite nicely with the Universal Devices ISY 994i/Z Pro, which provides complete programming for all functions of the tri sensor.
Now for the downside. The temperature readings are very inaccurate during the daytime. At night, the reported temperature stabilizes and is within a half a degree of my precision lab thermometer. During the daytime it appears as though the temperature follows the light, and light follows temperature. Given a set temperature with varying light the tri sensor will vary as much as 20° f. Given a set light condition, as temperature rises, lux level rises as well. Disabling either the temperature sensor or the light sensor through Z-Wave parameters disables the sensor (including motion) entirely.
I decided to keep this unit because this fix was simple. I put the unit inside a piece of black PVC pipe. Without the light the unit works fine.
I couldn't get this device to work with OpenHab (via a Nortek Z-wave controller), and only after searching some of the symptoms did I discover other people had the same issue. I cannot comment on the sensitivity or functions of the device, as it never reported motion to the hub. My OpenHab was a fresh install on a brand-new Raspberry Pi 4. This was the first node I added after the controller. It took a couple of attempts for the device to show up fully in OH (to be expected), but after several days of overnight mesh healing, restarts and reboots, the device would never send any motion/temp/luminance/battery events to the hub. It would not even send "wake" events, and Openhab did not create a config XML for it. The lack of this file finally led me to a forum conversation that indicated this sensor just does not play well with OpenHab.
I have this set up with Hubitat Elevation hub. I do like the sensor. My only complaint is the base. I used the swivel base and it is too loose. It will not hold position. Pointing to the ground. I don't know how to fix the issue.
Works as expected. Paired with HA correctly. From description it's not clear what triggers temperature updates. Most likely 2-3 degrees change. So it's not suitable as an indoor thermostat. I ended up returning it, as I needed more precise temperature updates.