THIRDREALITYZigbee Motion Sensor 2 Pack, Zigbee Hub Required, Pet Friendly, Work with Home Assistant,SmartThings, Aeotec,Homey, Hubitat or Echo Devices with Built-in Zigbee hub

UPDATED BELOWI picked this up for $15.99 and so far so good. The sensor is about as small as it could possibly be and still fit two AAA batteries inside. It paired right away via Zigbee with my Hubitat C-5 hub and no other configuration was required (but see the little quirk below in the update). It does not have a tamper sensor. The only data returned by the sensor are motion and battery level. The coverage area is nice and wide and I was pleased to discover that the motion sensing recovery time is only about 35 seconds. Why does this matter?I currently have six Bosch motion/temp sensors in various places and one of them is right outside my front door. I happened to get those on some sort of weird flash sale for $30 each where they were normally about $90. For $30 they are just fine, but they are large, take 4AA batteries, and most significantly have a MINIMUM three-minute recovery time in between motion sensing events.I use one of the Bosch sensors to alert me when one of my two dogs has returned from whatever adventures they were having outside. They tend to do their own thing and one of them almost always comes back before the other one. If they return more than three minutes apart then it's not problem and I get two separate alerts for the two different dogs and can open the door twice. But if the second dog comes back during the three-minute window right after the first, the Bosch motion sensor won't pick up the new motion alert and the second dog will be forced to wait outside with no recognition from his owner.No big deal right? He just has to wait another three minutes. Well, no. If you are within the three-minute recovery period and the sensor is tripped again, it starts a NEW three-minute recovery period. Assuming the dog doesn't freeze to death and keeps moving at some point during that three-minute period, the sensor will just keep re-tripping and going into an endless loop of three-minute recovery periods until the dog finally freezes or dehydrates. Thus the dilemma.With the 35-second recovery period of this sensor, I have now reduced the potential mortality rate of my second dog to return home by a factor of five. Good progress.UPDATE: The first sensor continues to work great a month later. I bought two more via the two-pack deal. The first one paired up instantly with zero issues. The second one paired up fine but came up as (blank) for the device type (Hubitat C-5 hub) and very strangely showed "Signify NV" as the manufacturer instead of ThirdReality. I tried changing the device type manually to "Generic Zigbee motion sensor- no temp," which is what the other two sensors automatically configured as. The sensor would show up as a device in my Hubitat device list but would not report any data. I removed it, did a factory reset, re-added, repeated, and still had the same problem. Posted a question here to see if there was a firmware update.Before I gave up, I tried one last thing that I had zero expectation of working. I removed the device again from Hubitat, held down the reset button and did a factory reset, and then took the batteries out. While holding down the reset button, I put the batteries back in and did one more reset. I have no idea why or how, but this somehow fixed the issue. The sensor paired up no problem with Hubitat, configured as "Generic Zigbee motion sensor- no temp" and properly showed "ThirdReality" as the manufacturer. From there on out the sensor worked just fine. I can't explain it but if you have the same weird problem I did, try doing a couple factory resets and holding down the button while taking the batteries out and then putting them back in. LOL the mysteries of the universe.

I was looking for a replacement motion sensor for my Smatrthings home automation hub and this ThirdReality motions sensor worked excellent. Installation was easy and the hub detected the sensor immediately using the built in driver. I really like the use of AAA batteries. Battery life has been good and they are much cheaper than coin batteries. Detection range is good and and I have not noticed any false triggers from pets. A great sensor for the price.

After contacting the manufacturer, they offered me a sample of their R1 sensor and that mm radar sensor covers the narrow hallway fine.Now that I have adjusted my expectations, I found use for the original sensor and actually purchased 4 more. However, I only use them when detecting motion within 12 feet.Thus, I increased the rating to 4 stars.Original review: I bought the sensor to cover a 20' long windowless hallway so the light would turn on automatically. Based on the product specifications, a single sensor should suffice. The reality is that mounting the sensor at one end of the narrow hallway, it can sometimes detect a human at 10' but usually at a shorter distance, 6' seems like a reliable detection range.At the $20 price point, I find it ridiculous that I should need multiple sensors to cover a narrow 20-foot long hallway. When it reliably detects motion under 6 feet, it should not cost more than $5. Frankly, I can easily put together a smart motion sensor from commercially available parts for $5 and I don't get the benefits of volume discounts.Otherwise, the sensor works well with my zigbee coordinator and Home Assistant.

The THIRDREALITY Zigbee Motion Sensor 4 Pack is a set of four motion sensors that use Zigbee technology to communicate with a compatible hub. The sensors are pet-friendly, which means that they are designed to ignore small animals and prevent false alarms. The sensors are compatible with a range of popular home automation platforms, including Home Assistant, SmartThings, Aeotec, Hubitat, and Echo devices with built-in Zigbee hub.One of the main benefits of these sensors is their ease of use and compatibility with a wide range of platforms. They are easy to install and set up, and they can be integrated into an existing smart home ecosystem with minimal effort. Additionally, the pet-friendly design is a nice touch that can prevent unnecessary alerts and make the sensors more practical for pet owners.However, those reasons explained above where non existen for me.Firstly, the sensors are prone to false alarms, even with the pet-friendly design. This can be frustrating and lead to unnecessary alerts that can quickly become a nuisance. Secondly, the sensors are not very durable and may stop working at any time (I’ve had it for a few days and constantly they decide not to work)Lastly, the sensors can be difficult to pair with some hubs, requiring manual intervention and technical knowledge that may be beyond the average user's abilities.In conclusion, the THIRDREALITY Zigbee Motion Sensor 4 Pack is a useful accessory for a smart home that can help enhance security and convenience. However, issues with false alarms, durability, and compatibility has been scratching my head on why I decided to purchase them.Please consider reading the reviews and you’ll see that several negative reviews are similar on why people return them.