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Use Case I've been into Z-Wave for a long time, so I have a collection of old PIRs (ex. ZW074s) from a variety of different vendors. Generally, they are not Z-Wave Plus devices, they are on the large side, and they use AA or AAA batteries. MultiSensor 6s make up the majority of my modern sensors. I had been phasing out my older equipment for newer stuff, but I noticed the TriSensor when I was looking for a bulk deal on MultiSensor 6s. I really only used the temperature and PIR of the previous sensors, so I thought I'd try a TriSensor. The capability deficit gets you a price reduction of between 15 and 30%.
Build Quality/Appearance The TriSensor comes in a small box, not much bigger than the sensor itself. Double-sided foam tape is included, as are two small wood screws, and a small fold-out manual. The housing of the TriSensor is dimensionally almost identical to the MultiSensor6 (pictured), with the main difference being that the face of the TriSensor is flat (as opposed to a PIR dome) and translucent. The indicator LED is behind the face, instead of behind a small pinhole. If the idea is for the sensor to blend in, it will do so much more readily than the MultiSensor 6 (pictured). The included mount will do the job, but is extremely cheap looking.
NOTE: A CR123A battery is supplied (installed), despite the product listing indicating that no batteries are included. The battery has a small plastic tab that needs to be removed to complete the circuit.
Setup/Performance Once powered, the device included on my controller within about 90 seconds (log pictured), creating 6 devices in HomeSeer (pictured). Initially the PIR wasn't behaving as I expected, so I changed parameter 4 on the device. Doing so exposes one of the key differentiators between the TriSensor and the MultiSensor 6... the TriSensor doe not have a USB port. While most probably would not hardwire their sensors, it is handy to have the sensor on line power when setting up and configuring the device. As it was, I hit the button to "wake up" the device as I enumerated and changed the device parameter settings. The PIR and temperature sensors appear to be comparable to the MultiSensor 6. The light sensor on the TriSensor is vastly superior to the one on the MultiSensor 6. I'm looking forward to being able to more reliably use ambient light levels in my scenes as trigger criteria.
Since the TriSensor hides the report LED behind the face, it has a much cleaner look... until the light goes off. The indicator light is REALLY bright (much more so than the one on the MultiSensor 6. You can modify the report colors for the different sensor events, and you can even disable the lights completely (if you want a stealthy look).
Conclusion If you do not need humidity, UV, and vibration sensing, there's no reason to avoid the TriSensor. Generally speaking, you can equip every room with one or more of these sensors, so the price difference can end up being significant. It's subjective, but I like the look of the TriSensor a bit more than the MultiSensor 6, though I did turn off the indicator LEDs. Recommended.
I have lots of Aeotec Multisensor 6 devices but this TriSensor is cheaper for when I don't need humidity or UV (but UV usually doesn't work well anyway). However, out of the box, motion is disabled on the device (so it makes it useless). See below for instructions to enable motion (i.e. on Vera). After the custom setup, it seems to work as expected.
I found some buried documentation on the manufacturer website, look for their freshdesk article on the “trisensor with vera”.
TL;DR you have to "Add new configuration" under Device Options with these settings: variables = 4 size = 1 byte dec desired value = 1
First one I received (purchased Nov 19, 2019) would die after two or three days consistently. I contacted the seller and returned the item and they replaced it and the new one works fine. I assume there was either a bad batch or some buggy firmware, since I see many people complaining about the same thing. Having now had both a bad and a good one I can say it's not an inherent flaw in the device, nor was it a problem with my network (which of course I was wondering too), but seems to be a problem with just some of them. Would give it five stars if I knew the issue were resolved -- it works great now, but I hesitate to give full recommendation when many area reporting the same issue. Maybe check the review dates carefully for this complaint and see if it seems to be resolved by the time you read this...
This unit integrated very well with my Smarthings hub and correctly closes drapes when the sun is bright and re-opens them when the light decreases. It seems to have a maximum luminance value of 22595 lux however. This is not a problem for me as my trigger values for sunlight need to be much lower but this might be an issue for you if you require accurate top-of-the-scale readings. The app display goes up to 30000lux but it never gets that high--see above.