

🚀 Elevate your smart home game with lightning-fast, pet-friendly motion sensing!
The THIRDREALITY Zigbee Motion Sensor delivers reliable, pet-friendly motion detection compatible with major Zigbee hubs including Echo devices and SmartThings. Featuring a 35-second recovery time and up to 20 feet detection range, it supports customizable Alexa routines and boasts a 2-year battery life powered by 2 AAA batteries. Its hassle-free setup and broad smart home compatibility make it a must-have for modern connected living.

























| ASIN | B08RRRWK6B |
| Antenna Location | Driveway, Garage, Garden, Lawn, Sidewalk, Terrace, Walkway |
| Battery Average Life | 2 years |
| Battery Description | 2 AAA Alkaline batteries |
| Best Sellers Rank | #3,135 in Electronics ( See Top 100 in Electronics ) #5 in Motion Detectors (Electronics) |
| Brand | THIRDREALITY |
| Built-In Media | AAA Battery × 2, Double-sided Tape, Screw × 2, Wireless Motion Sensor |
| Color | White |
| Compatible Devices | Echo (4th Gen), Echo Plus (1st Gen and 2nd Gen), Echo Studio, Eero 6, Eero Pro 6, Home Assistant, SmartThings 2015/2018, Aeotec, Homey, Hubitat, Homey Bridge, Homey Pro, Third reality Hub and Third Reality Smart Speaker |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,740) |
| Item Dimensions D x W x H | 0.79"D x 1.06"W x 3.54"H |
| Item Weight | 1.83 Ounces |
| Manufacturer | Third Reality, Inc |
| Maximum Range | 30 Feet |
| Mfr Part Number | 3RMS16BZ |
| Model Number | 3RMS16BZ |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. (included) |
| Power Source | Battery Powered |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 850001595278 |
D**T
GREAT NO-FRILLS SENSOR- 35 second recovery time!
UPDATED BELOW I 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.
R**I
Works great with Samsung hub.
Worked great and easy to set up. I have other motion sensors that also have temperature available, but this one does not. I bought it for motion sensing and that works great. I use a Samsung Smart Things hub.
N**.
💡 THIRDREALITY Zigbee Motion Sensor (4-Pack): A Home Assistant Staple
🏡 Seamless Integration for the Home Automation Enthusiast As a user heavily invested in Home Assistant, finding reliable and well-integrated Zigbee devices is crucial. The THIRDREALITY Zigbee Motion Sensor 4 Pack proved to be a fantastic investment. The setup process was essentially flawless: they paired quickly with my existing Zigbee coordinator and were immediately recognized by Home Assistant, allowing me to integrate them into critical automations (like motion-triggered lighting) without any complex workarounds or custom code. The sensors are fast, dependable, and, critically, they maintain a rock-solid connection to the network, which is often a pain point with other battery-powered Zigbee devices. 🔋 Smart Design & Practical Power The design of the THIRDREALITY Zigbee Motion Sensor 4 Pack shows a commitment to user convenience. AAA Battery Advantage: I greatly appreciate that these sensors use standard AAA batteries instead of proprietary or expensive coin cell batteries. This makes restocking easy and cost-effective. The manufacturer advertises up to a two-year battery life on two AAA batteries, which is excellent for a "set it and forget it" device. Coverage and Range: The sensors are capable of detecting motion up to 30 feet (9 meters) away, providing excellent coverage for large rooms and hallways. Pet-Friendly Functionality: The "Pet Friendly" feature works perfectly, minimizing false triggers from my pets while still reliably capturing human movement. This prevents those annoying late-night false alarms when lights turn on for no reason. ⭐ Final Verdict: The Go-To Motion Sensor If reliability, easy Home Assistant integration, and practical battery power are your priorities, the THIRDREALITY Zigbee Motion Sensor 4 Pack is the best Zigbee motion sensor kit available at this price point. Their consistent performance and simple setup make them a true game-changer for building out a stable smart home. I would absolutely purchase this 4-pack again as I expand my smart home network.
L**I
Why did you choose this product over others?: This is the best Zigbee motion sensor I have used to date. The 2 AAA batteries, ensure that it has a strong connection to the zigbee router. It will stay powered for a long time due to these batteries. I have had multiple issues in the exact locations these motion sensors are in when using the sensors with coin batteries, but now These have not lost connection and have been very reliable. Super easy to install. The only dislike is the design, as they are quite Long, but that is needed for the AAA batteries so it is a trade off.
M**L
parfait avec zigbee2mqtt sous domoticz
R**W
Giving it 5 stars because it worked out of the box with the echo hub, no messing around. 1 to 2 second routine responses on movement.
K**S
Spent multiple hours going through forums to identify a solution, but unfortunately not motion sensors are not connecting with Alexa
M**N
Ik heb allerlei motion sensors gebruikt bij Home Assistent en deze blijft het gewoon doen en reageert snel genoeg.
Trustpilot
1 maand geleden
1 maand geleden